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Description: Lemma for archiabl . (Contributed by Thierry Arnoux, 1-May-2018)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | archiabllem.b | ⊢ 𝐵 = ( Base ‘ 𝑊 ) | |
| archiabllem.0 | ⊢ 0 = ( 0g ‘ 𝑊 ) | ||
| archiabllem.e | ⊢ ≤ = ( le ‘ 𝑊 ) | ||
| archiabllem.t | ⊢ < = ( lt ‘ 𝑊 ) | ||
| archiabllem.m | ⊢ · = ( .g ‘ 𝑊 ) | ||
| archiabllem.g | ⊢ ( 𝜑 → 𝑊 ∈ oGrp ) | ||
| archiabllem.a | ⊢ ( 𝜑 → 𝑊 ∈ Archi ) | ||
| archiabllem2.1 | ⊢ + = ( +g ‘ 𝑊 ) | ||
| archiabllem2.2 | ⊢ ( 𝜑 → ( oppg ‘ 𝑊 ) ∈ oGrp ) | ||
| archiabllem2.3 | ⊢ ( ( 𝜑 ∧ 𝑎 ∈ 𝐵 ∧ 0 < 𝑎 ) → ∃ 𝑏 ∈ 𝐵 ( 0 < 𝑏 ∧ 𝑏 < 𝑎 ) ) | ||
| archiabllem2b.4 | ⊢ ( 𝜑 → 𝑋 ∈ 𝐵 ) | ||
| archiabllem2b.5 | ⊢ ( 𝜑 → 𝑌 ∈ 𝐵 ) | ||
| Assertion | archiabllem2c | ⊢ ( 𝜑 → ¬ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | archiabllem.b | ⊢ 𝐵 = ( Base ‘ 𝑊 ) | |
| 2 | archiabllem.0 | ⊢ 0 = ( 0g ‘ 𝑊 ) | |
| 3 | archiabllem.e | ⊢ ≤ = ( le ‘ 𝑊 ) | |
| 4 | archiabllem.t | ⊢ < = ( lt ‘ 𝑊 ) | |
| 5 | archiabllem.m | ⊢ · = ( .g ‘ 𝑊 ) | |
| 6 | archiabllem.g | ⊢ ( 𝜑 → 𝑊 ∈ oGrp ) | |
| 7 | archiabllem.a | ⊢ ( 𝜑 → 𝑊 ∈ Archi ) | |
| 8 | archiabllem2.1 | ⊢ + = ( +g ‘ 𝑊 ) | |
| 9 | archiabllem2.2 | ⊢ ( 𝜑 → ( oppg ‘ 𝑊 ) ∈ oGrp ) | |
| 10 | archiabllem2.3 | ⊢ ( ( 𝜑 ∧ 𝑎 ∈ 𝐵 ∧ 0 < 𝑎 ) → ∃ 𝑏 ∈ 𝐵 ( 0 < 𝑏 ∧ 𝑏 < 𝑎 ) ) | |
| 11 | archiabllem2b.4 | ⊢ ( 𝜑 → 𝑋 ∈ 𝐵 ) | |
| 12 | archiabllem2b.5 | ⊢ ( 𝜑 → 𝑌 ∈ 𝐵 ) | |
| 13 | simprr | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ) ∧ ( 0 < 𝑡 ∧ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) ) → ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) | |
| 14 | simpl1l | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝜑 ) | |
| 15 | 14 6 | syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑊 ∈ oGrp ) |
| 16 | simpl1r | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) | |
| 17 | 6 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → 𝑊 ∈ oGrp ) |
| 18 | ogrpgrp | ⊢ ( 𝑊 ∈ oGrp → 𝑊 ∈ Grp ) | |
| 19 | 17 18 | syl | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → 𝑊 ∈ Grp ) |
| 20 | 12 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → 𝑌 ∈ 𝐵 ) |
| 21 | 11 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → 𝑋 ∈ 𝐵 ) |
| 22 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ) → ( 𝑌 + 𝑋 ) ∈ 𝐵 ) |
| 23 | 19 20 21 22 | syl3anc | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( 𝑌 + 𝑋 ) ∈ 𝐵 ) |
| 24 | 14 16 23 | syl2anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑌 + 𝑋 ) ∈ 𝐵 ) |
| 25 | 14 6 18 | 3syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑊 ∈ Grp ) |
| 26 | simpr2 | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑚 ∈ ℤ ) | |
| 27 | 26 | peano2zd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑚 + 1 ) ∈ ℤ ) |
| 28 | simp2 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑡 ∈ 𝐵 ) | |
| 29 | 28 | adantr | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑡 ∈ 𝐵 ) |
| 30 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑚 + 1 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) → ( ( 𝑚 + 1 ) · 𝑡 ) ∈ 𝐵 ) |
| 31 | 25 27 29 30 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑚 + 1 ) · 𝑡 ) ∈ 𝐵 ) |
| 32 | simpr1 | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑛 ∈ ℤ ) | |
| 33 | 32 | peano2zd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑛 + 1 ) ∈ ℤ ) |
| 34 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑛 + 1 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) → ( ( 𝑛 + 1 ) · 𝑡 ) ∈ 𝐵 ) |
| 35 | 25 33 29 34 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 + 1 ) · 𝑡 ) ∈ 𝐵 ) |
| 36 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑚 + 1 ) · 𝑡 ) ∈ 𝐵 ∧ ( ( 𝑛 + 1 ) · 𝑡 ) ∈ 𝐵 ) → ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ∈ 𝐵 ) |
| 37 | 25 31 35 36 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ∈ 𝐵 ) |
| 38 | 21 | 3ad2ant1 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑋 ∈ 𝐵 ) |
| 39 | 38 | adantr | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑋 ∈ 𝐵 ) |
| 40 | 20 | 3ad2ant1 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑌 ∈ 𝐵 ) |
| 41 | 40 | adantr | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑌 ∈ 𝐵 ) |
| 42 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 + 𝑌 ) ∈ 𝐵 ) |
| 43 | 25 39 41 42 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑋 + 𝑌 ) ∈ 𝐵 ) |
| 44 | isogrp | ⊢ ( 𝑊 ∈ oGrp ↔ ( 𝑊 ∈ Grp ∧ 𝑊 ∈ oMnd ) ) | |
| 45 | 44 | simprbi | ⊢ ( 𝑊 ∈ oGrp → 𝑊 ∈ oMnd ) |
| 46 | 14 6 45 | 3syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑊 ∈ oMnd ) |
| 47 | simpr3 | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) | |
| 48 | 47 | simprd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) |
| 49 | 48 | simprd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) |
| 50 | 47 | simpld | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ) |
| 51 | 50 | simprd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) |
| 52 | isogrp | ⊢ ( ( oppg ‘ 𝑊 ) ∈ oGrp ↔ ( ( oppg ‘ 𝑊 ) ∈ Grp ∧ ( oppg ‘ 𝑊 ) ∈ oMnd ) ) | |
| 53 | 52 | simprbi | ⊢ ( ( oppg ‘ 𝑊 ) ∈ oGrp → ( oppg ‘ 𝑊 ) ∈ oMnd ) |
| 54 | 14 9 53 | 3syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( oppg ‘ 𝑊 ) ∈ oMnd ) |
| 55 | 1 3 8 46 35 41 39 31 49 51 54 | omndadd2rd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑌 + 𝑋 ) ≤ ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ) |
| 56 | eqid | ⊢ ( -g ‘ 𝑊 ) = ( -g ‘ 𝑊 ) | |
| 57 | 1 3 56 | ogrpsub | ⊢ ( ( 𝑊 ∈ oGrp ∧ ( ( 𝑌 + 𝑋 ) ∈ 𝐵 ∧ ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ∈ 𝐵 ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) ∧ ( 𝑌 + 𝑋 ) ≤ ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ≤ ( ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 58 | 15 24 37 43 55 57 | syl131anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ≤ ( ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 59 | 26 | zcnd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑚 ∈ ℂ ) |
| 60 | 32 | zcnd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑛 ∈ ℂ ) |
| 61 | 1cnd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 1 ∈ ℂ ) | |
| 62 | 59 60 61 61 | add4d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑚 + 𝑛 ) + ( 1 + 1 ) ) = ( ( 𝑚 + 1 ) + ( 𝑛 + 1 ) ) ) |
| 63 | 1p1e2 | ⊢ ( 1 + 1 ) = 2 | |
| 64 | 63 | oveq2i | ⊢ ( ( 𝑚 + 𝑛 ) + ( 1 + 1 ) ) = ( ( 𝑚 + 𝑛 ) + 2 ) |
| 65 | addcom | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → ( 𝑚 + 𝑛 ) = ( 𝑛 + 𝑚 ) ) | |
| 66 | 65 | oveq1d | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → ( ( 𝑚 + 𝑛 ) + 2 ) = ( ( 𝑛 + 𝑚 ) + 2 ) ) |
| 67 | 64 66 | eqtrid | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → ( ( 𝑚 + 𝑛 ) + ( 1 + 1 ) ) = ( ( 𝑛 + 𝑚 ) + 2 ) ) |
| 68 | 2cnd | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → 2 ∈ ℂ ) | |
| 69 | simpr | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → 𝑛 ∈ ℂ ) | |
| 70 | simpl | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → 𝑚 ∈ ℂ ) | |
| 71 | 69 70 | addcld | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → ( 𝑛 + 𝑚 ) ∈ ℂ ) |
| 72 | 68 71 | addcomd | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → ( 2 + ( 𝑛 + 𝑚 ) ) = ( ( 𝑛 + 𝑚 ) + 2 ) ) |
| 73 | 67 72 | eqtr4d | ⊢ ( ( 𝑚 ∈ ℂ ∧ 𝑛 ∈ ℂ ) → ( ( 𝑚 + 𝑛 ) + ( 1 + 1 ) ) = ( 2 + ( 𝑛 + 𝑚 ) ) ) |
| 74 | 59 60 73 | syl2anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑚 + 𝑛 ) + ( 1 + 1 ) ) = ( 2 + ( 𝑛 + 𝑚 ) ) ) |
| 75 | 62 74 | eqtr3d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑚 + 1 ) + ( 𝑛 + 1 ) ) = ( 2 + ( 𝑛 + 𝑚 ) ) ) |
| 76 | 75 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑚 + 1 ) + ( 𝑛 + 1 ) ) · 𝑡 ) = ( ( 2 + ( 𝑛 + 𝑚 ) ) · 𝑡 ) ) |
| 77 | 2z | ⊢ 2 ∈ ℤ | |
| 78 | 77 | a1i | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 2 ∈ ℤ ) |
| 79 | 32 26 | zaddcld | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑛 + 𝑚 ) ∈ ℤ ) |
| 80 | 1 5 8 | mulgdir | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 2 ∈ ℤ ∧ ( 𝑛 + 𝑚 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) ) → ( ( 2 + ( 𝑛 + 𝑚 ) ) · 𝑡 ) = ( ( 2 · 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 81 | 25 78 79 29 80 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 2 + ( 𝑛 + 𝑚 ) ) · 𝑡 ) = ( ( 2 · 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 82 | 76 81 | eqtrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑚 + 1 ) + ( 𝑛 + 1 ) ) · 𝑡 ) = ( ( 2 · 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 83 | 1 5 8 | mulgdir | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑚 + 1 ) ∈ ℤ ∧ ( 𝑛 + 1 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) ) → ( ( ( 𝑚 + 1 ) + ( 𝑛 + 1 ) ) · 𝑡 ) = ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ) |
| 84 | 25 27 33 29 83 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑚 + 1 ) + ( 𝑛 + 1 ) ) · 𝑡 ) = ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ) |
| 85 | 1 5 8 | mulg2 | ⊢ ( 𝑡 ∈ 𝐵 → ( 2 · 𝑡 ) = ( 𝑡 + 𝑡 ) ) |
| 86 | 29 85 | syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 2 · 𝑡 ) = ( 𝑡 + 𝑡 ) ) |
| 87 | 86 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 2 · 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) = ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 88 | 82 84 87 | 3eqtr3d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) = ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 89 | 88 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( ( 𝑚 + 1 ) · 𝑡 ) + ( ( 𝑛 + 1 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) = ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 90 | 58 89 | breqtrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ≤ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 91 | 88 37 | eqeltrrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ) |
| 92 | eqid | ⊢ ( invg ‘ 𝑊 ) = ( invg ‘ 𝑊 ) | |
| 93 | 1 8 92 56 | grpsubval | ⊢ ( ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) = ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ) |
| 94 | 91 43 93 | syl2anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) = ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ) |
| 95 | 90 94 | breqtrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ≤ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ) |
| 96 | 14 9 | syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( oppg ‘ 𝑊 ) ∈ oGrp ) |
| 97 | 1 92 | grpinvcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) → ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) |
| 98 | 25 43 97 | syl2anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) |
| 99 | 79 | znegcld | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → - ( 𝑛 + 𝑚 ) ∈ ℤ ) |
| 100 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ - ( 𝑛 + 𝑚 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) → ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ) |
| 101 | 25 99 29 100 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ) |
| 102 | 1 5 8 | mulgdir | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) ) → ( ( 𝑛 + 𝑚 ) · 𝑡 ) = ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) ) |
| 103 | 25 32 26 29 102 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 + 𝑚 ) · 𝑡 ) = ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) ) |
| 104 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑛 ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) → ( 𝑛 · 𝑡 ) ∈ 𝐵 ) |
| 105 | 25 32 29 104 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑛 · 𝑡 ) ∈ 𝐵 ) |
| 106 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑚 ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) → ( 𝑚 · 𝑡 ) ∈ 𝐵 ) |
| 107 | 25 26 29 106 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑚 · 𝑡 ) ∈ 𝐵 ) |
| 108 | 50 | simpld | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑛 · 𝑡 ) < 𝑋 ) |
| 109 | 1 4 8 | ogrpaddlt | ⊢ ( ( 𝑊 ∈ oGrp ∧ ( ( 𝑛 · 𝑡 ) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ∧ ( 𝑚 · 𝑡 ) ∈ 𝐵 ) ∧ ( 𝑛 · 𝑡 ) < 𝑋 ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + ( 𝑚 · 𝑡 ) ) ) |
| 110 | 15 105 39 107 108 109 | syl131anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + ( 𝑚 · 𝑡 ) ) ) |
| 111 | 48 | simpld | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑚 · 𝑡 ) < 𝑌 ) |
| 112 | 1 4 8 15 96 107 41 39 111 | ogrpaddltrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑋 + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + 𝑌 ) ) |
| 113 | omndtos | ⊢ ( 𝑊 ∈ oMnd → 𝑊 ∈ Toset ) | |
| 114 | tospos | ⊢ ( 𝑊 ∈ Toset → 𝑊 ∈ Poset ) | |
| 115 | 46 113 114 | 3syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → 𝑊 ∈ Poset ) |
| 116 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑛 · 𝑡 ) ∈ 𝐵 ∧ ( 𝑚 · 𝑡 ) ∈ 𝐵 ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) ∈ 𝐵 ) |
| 117 | 25 105 107 116 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) ∈ 𝐵 ) |
| 118 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑋 ∈ 𝐵 ∧ ( 𝑚 · 𝑡 ) ∈ 𝐵 ) → ( 𝑋 + ( 𝑚 · 𝑡 ) ) ∈ 𝐵 ) |
| 119 | 25 39 107 118 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑋 + ( 𝑚 · 𝑡 ) ) ∈ 𝐵 ) |
| 120 | 1 4 | plttr | ⊢ ( ( 𝑊 ∈ Poset ∧ ( ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) ∈ 𝐵 ∧ ( 𝑋 + ( 𝑚 · 𝑡 ) ) ∈ 𝐵 ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) ) → ( ( ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + ( 𝑚 · 𝑡 ) ) ∧ ( 𝑋 + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + 𝑌 ) ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + 𝑌 ) ) ) |
| 121 | 115 117 119 43 120 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + ( 𝑚 · 𝑡 ) ) ∧ ( 𝑋 + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + 𝑌 ) ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + 𝑌 ) ) ) |
| 122 | 110 112 121 | mp2and | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 · 𝑡 ) + ( 𝑚 · 𝑡 ) ) < ( 𝑋 + 𝑌 ) ) |
| 123 | 103 122 | eqbrtrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 + 𝑚 ) · 𝑡 ) < ( 𝑋 + 𝑌 ) ) |
| 124 | 103 117 | eqeltrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ) |
| 125 | 1 4 92 | ogrpinvlt | ⊢ ( ( ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ∧ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) → ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) < ( 𝑋 + 𝑌 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) ) |
| 126 | 15 96 124 43 125 | syl211anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) < ( 𝑋 + 𝑌 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) ) |
| 127 | 123 126 | mpbid | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 128 | 1 5 92 | mulgneg | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑛 + 𝑚 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) → ( - ( 𝑛 + 𝑚 ) · 𝑡 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 129 | 25 79 29 128 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( - ( 𝑛 + 𝑚 ) · 𝑡 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 130 | 127 129 | breqtrrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) < ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) |
| 131 | 1 4 8 15 96 98 101 91 130 | ogrpaddltrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) < ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 132 | 1 56 | grpsubcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑌 + 𝑋 ) ∈ 𝐵 ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) |
| 133 | 25 24 43 132 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) |
| 134 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ∧ ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ∈ 𝐵 ) |
| 135 | 25 91 98 134 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ∈ 𝐵 ) |
| 136 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ∧ ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ) |
| 137 | 25 91 101 136 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ) |
| 138 | 1 3 4 | plelttr | ⊢ ( ( 𝑊 ∈ Poset ∧ ( ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ∧ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ∈ 𝐵 ∧ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ∈ 𝐵 ) ) → ( ( ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ≤ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ∧ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) < ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) ) |
| 139 | 115 133 135 137 138 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ≤ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) ∧ ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( ( invg ‘ 𝑊 ) ‘ ( 𝑋 + 𝑌 ) ) ) < ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) ) |
| 140 | 95 131 139 | mp2and | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 141 | 1 8 | grpcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑡 ∈ 𝐵 ∧ 𝑡 ∈ 𝐵 ) → ( 𝑡 + 𝑡 ) ∈ 𝐵 ) |
| 142 | 25 29 29 141 | syl3anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑡 + 𝑡 ) ∈ 𝐵 ) |
| 143 | 1 8 | grpass | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑡 + 𝑡 ) ∈ 𝐵 ∧ ( ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ∧ ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ∈ 𝐵 ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) = ( ( 𝑡 + 𝑡 ) + ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) ) |
| 144 | 25 142 124 101 143 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) = ( ( 𝑡 + 𝑡 ) + ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) ) |
| 145 | 60 59 | addcld | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 𝑛 + 𝑚 ) ∈ ℂ ) |
| 146 | 145 | negidd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑛 + 𝑚 ) + - ( 𝑛 + 𝑚 ) ) = 0 ) |
| 147 | 146 | oveq1d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑛 + 𝑚 ) + - ( 𝑛 + 𝑚 ) ) · 𝑡 ) = ( 0 · 𝑡 ) ) |
| 148 | 1 5 8 | mulgdir | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑛 + 𝑚 ) ∈ ℤ ∧ - ( 𝑛 + 𝑚 ) ∈ ℤ ∧ 𝑡 ∈ 𝐵 ) ) → ( ( ( 𝑛 + 𝑚 ) + - ( 𝑛 + 𝑚 ) ) · 𝑡 ) = ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 149 | 25 79 99 29 148 | syl13anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑛 + 𝑚 ) + - ( 𝑛 + 𝑚 ) ) · 𝑡 ) = ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) |
| 150 | 1 2 5 | mulg0 | ⊢ ( 𝑡 ∈ 𝐵 → ( 0 · 𝑡 ) = 0 ) |
| 151 | 29 150 | syl | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( 0 · 𝑡 ) = 0 ) |
| 152 | 147 149 151 | 3eqtr3d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) = 0 ) |
| 153 | 152 | oveq2d | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑡 + 𝑡 ) + ( ( ( 𝑛 + 𝑚 ) · 𝑡 ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) ) = ( ( 𝑡 + 𝑡 ) + 0 ) ) |
| 154 | 1 8 2 | grprid | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑡 + 𝑡 ) ∈ 𝐵 ) → ( ( 𝑡 + 𝑡 ) + 0 ) = ( 𝑡 + 𝑡 ) ) |
| 155 | 25 142 154 | syl2anc | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑡 + 𝑡 ) + 0 ) = ( 𝑡 + 𝑡 ) ) |
| 156 | 144 153 155 | 3eqtrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( ( 𝑡 + 𝑡 ) + ( ( 𝑛 + 𝑚 ) · 𝑡 ) ) + ( - ( 𝑛 + 𝑚 ) · 𝑡 ) ) = ( 𝑡 + 𝑡 ) ) |
| 157 | 140 156 | breqtrd | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ ( 𝑛 ∈ ℤ ∧ 𝑚 ∈ ℤ ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( 𝑡 + 𝑡 ) ) |
| 158 | 157 | 3anassrs | ⊢ ( ( ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) ∧ 𝑛 ∈ ℤ ) ∧ 𝑚 ∈ ℤ ) ∧ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( 𝑡 + 𝑡 ) ) |
| 159 | 17 | 3ad2ant1 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑊 ∈ oGrp ) |
| 160 | 7 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → 𝑊 ∈ Archi ) |
| 161 | 160 | 3ad2ant1 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑊 ∈ Archi ) |
| 162 | simp3 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 0 < 𝑡 ) | |
| 163 | 9 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( oppg ‘ 𝑊 ) ∈ oGrp ) |
| 164 | 163 | 3ad2ant1 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ( oppg ‘ 𝑊 ) ∈ oGrp ) |
| 165 | 1 2 4 3 5 159 161 28 38 162 164 | archirngz | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ) |
| 166 | 1 2 4 3 5 159 161 28 40 162 164 | archirngz | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ∃ 𝑚 ∈ ℤ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) |
| 167 | reeanv | ⊢ ( ∃ 𝑛 ∈ ℤ ∃ 𝑚 ∈ ℤ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ↔ ( ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ∃ 𝑚 ∈ ℤ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) | |
| 168 | 165 166 167 | sylanbrc | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ∃ 𝑛 ∈ ℤ ∃ 𝑚 ∈ ℤ ( ( ( 𝑛 · 𝑡 ) < 𝑋 ∧ 𝑋 ≤ ( ( 𝑛 + 1 ) · 𝑡 ) ) ∧ ( ( 𝑚 · 𝑡 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑚 + 1 ) · 𝑡 ) ) ) ) |
| 169 | 158 168 | r19.29vva | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( 𝑡 + 𝑡 ) ) |
| 170 | 159 45 113 | 3syl | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑊 ∈ Toset ) |
| 171 | 19 21 20 42 | syl3anc | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( 𝑋 + 𝑌 ) ∈ 𝐵 ) |
| 172 | 19 23 171 132 | syl3anc | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) |
| 173 | 172 | 3ad2ant1 | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ) |
| 174 | 159 18 | syl | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → 𝑊 ∈ Grp ) |
| 175 | 174 28 28 141 | syl3anc | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ( 𝑡 + 𝑡 ) ∈ 𝐵 ) |
| 176 | 1 3 4 | tltnle | ⊢ ( ( 𝑊 ∈ Toset ∧ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ∈ 𝐵 ∧ ( 𝑡 + 𝑡 ) ∈ 𝐵 ) → ( ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( 𝑡 + 𝑡 ) ↔ ¬ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) ) |
| 177 | 170 173 175 176 | syl3anc | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ( ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( 𝑡 + 𝑡 ) ↔ ¬ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) ) |
| 178 | 169 177 | mpbid | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ∧ 0 < 𝑡 ) → ¬ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 179 | 178 | 3expa | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ) ∧ 0 < 𝑡 ) → ¬ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 180 | 179 | adantrr | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ) ∧ ( 0 < 𝑡 ∧ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) ) → ¬ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 181 | 13 180 | pm2.21fal | ⊢ ( ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑡 ∈ 𝐵 ) ∧ ( 0 < 𝑡 ∧ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) ) → ⊥ ) |
| 182 | 10 | 3adant1r | ⊢ ( ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) ∧ 𝑎 ∈ 𝐵 ∧ 0 < 𝑎 ) → ∃ 𝑏 ∈ 𝐵 ( 0 < 𝑏 ∧ 𝑏 < 𝑎 ) ) |
| 183 | 1 2 56 | grpsubid | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) → ( ( 𝑋 + 𝑌 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) = 0 ) |
| 184 | 19 171 183 | syl2anc | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( ( 𝑋 + 𝑌 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) = 0 ) |
| 185 | simpr | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) | |
| 186 | 1 4 56 | ogrpsublt | ⊢ ( ( 𝑊 ∈ oGrp ∧ ( ( 𝑋 + 𝑌 ) ∈ 𝐵 ∧ ( 𝑌 + 𝑋 ) ∈ 𝐵 ∧ ( 𝑋 + 𝑌 ) ∈ 𝐵 ) ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( ( 𝑋 + 𝑌 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 187 | 17 171 23 171 185 186 | syl131anc | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ( ( 𝑋 + 𝑌 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) < ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 188 | 184 187 | eqbrtrrd | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → 0 < ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) |
| 189 | 1 2 3 4 5 17 160 8 163 182 172 188 | archiabllem2a | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ∃ 𝑡 ∈ 𝐵 ( 0 < 𝑡 ∧ ( 𝑡 + 𝑡 ) ≤ ( ( 𝑌 + 𝑋 ) ( -g ‘ 𝑊 ) ( 𝑋 + 𝑌 ) ) ) ) |
| 190 | 181 189 | r19.29a | ⊢ ( ( 𝜑 ∧ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) → ⊥ ) |
| 191 | 190 | inegd | ⊢ ( 𝜑 → ¬ ( 𝑋 + 𝑌 ) < ( 𝑌 + 𝑋 ) ) |