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Description: Property of Archimedean left and right ordered groups. (Contributed by Thierry Arnoux, 6-May-2018)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | archirng.b | ⊢ 𝐵 = ( Base ‘ 𝑊 ) | |
| archirng.0 | ⊢ 0 = ( 0g ‘ 𝑊 ) | ||
| archirng.i | ⊢ < = ( lt ‘ 𝑊 ) | ||
| archirng.l | ⊢ ≤ = ( le ‘ 𝑊 ) | ||
| archirng.x | ⊢ · = ( .g ‘ 𝑊 ) | ||
| archirng.1 | ⊢ ( 𝜑 → 𝑊 ∈ oGrp ) | ||
| archirng.2 | ⊢ ( 𝜑 → 𝑊 ∈ Archi ) | ||
| archirng.3 | ⊢ ( 𝜑 → 𝑋 ∈ 𝐵 ) | ||
| archirng.4 | ⊢ ( 𝜑 → 𝑌 ∈ 𝐵 ) | ||
| archirng.5 | ⊢ ( 𝜑 → 0 < 𝑋 ) | ||
| archirngz.1 | ⊢ ( 𝜑 → ( oppg ‘ 𝑊 ) ∈ oGrp ) | ||
| Assertion | archirngz | ⊢ ( 𝜑 → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | archirng.b | ⊢ 𝐵 = ( Base ‘ 𝑊 ) | |
| 2 | archirng.0 | ⊢ 0 = ( 0g ‘ 𝑊 ) | |
| 3 | archirng.i | ⊢ < = ( lt ‘ 𝑊 ) | |
| 4 | archirng.l | ⊢ ≤ = ( le ‘ 𝑊 ) | |
| 5 | archirng.x | ⊢ · = ( .g ‘ 𝑊 ) | |
| 6 | archirng.1 | ⊢ ( 𝜑 → 𝑊 ∈ oGrp ) | |
| 7 | archirng.2 | ⊢ ( 𝜑 → 𝑊 ∈ Archi ) | |
| 8 | archirng.3 | ⊢ ( 𝜑 → 𝑋 ∈ 𝐵 ) | |
| 9 | archirng.4 | ⊢ ( 𝜑 → 𝑌 ∈ 𝐵 ) | |
| 10 | archirng.5 | ⊢ ( 𝜑 → 0 < 𝑋 ) | |
| 11 | archirngz.1 | ⊢ ( 𝜑 → ( oppg ‘ 𝑊 ) ∈ oGrp ) | |
| 12 | neg1z | ⊢ - 1 ∈ ℤ | |
| 13 | ogrpgrp | ⊢ ( 𝑊 ∈ oGrp → 𝑊 ∈ Grp ) | |
| 14 | 6 13 | syl | ⊢ ( 𝜑 → 𝑊 ∈ Grp ) |
| 15 | 1zzd | ⊢ ( 𝜑 → 1 ∈ ℤ ) | |
| 16 | eqid | ⊢ ( invg ‘ 𝑊 ) = ( invg ‘ 𝑊 ) | |
| 17 | 1 5 16 | mulgneg | ⊢ ( ( 𝑊 ∈ Grp ∧ 1 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( - 1 · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( 1 · 𝑋 ) ) ) |
| 18 | 14 15 8 17 | syl3anc | ⊢ ( 𝜑 → ( - 1 · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( 1 · 𝑋 ) ) ) |
| 19 | 1 5 | mulg1 | ⊢ ( 𝑋 ∈ 𝐵 → ( 1 · 𝑋 ) = 𝑋 ) |
| 20 | 8 19 | syl | ⊢ ( 𝜑 → ( 1 · 𝑋 ) = 𝑋 ) |
| 21 | 20 | fveq2d | ⊢ ( 𝜑 → ( ( invg ‘ 𝑊 ) ‘ ( 1 · 𝑋 ) ) = ( ( invg ‘ 𝑊 ) ‘ 𝑋 ) ) |
| 22 | 18 21 | eqtrd | ⊢ ( 𝜑 → ( - 1 · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ 𝑋 ) ) |
| 23 | 1 3 16 2 | ogrpinv0lt | ⊢ ( ( 𝑊 ∈ oGrp ∧ 𝑋 ∈ 𝐵 ) → ( 0 < 𝑋 ↔ ( ( invg ‘ 𝑊 ) ‘ 𝑋 ) < 0 ) ) |
| 24 | 23 | biimpa | ⊢ ( ( ( 𝑊 ∈ oGrp ∧ 𝑋 ∈ 𝐵 ) ∧ 0 < 𝑋 ) → ( ( invg ‘ 𝑊 ) ‘ 𝑋 ) < 0 ) |
| 25 | 6 8 10 24 | syl21anc | ⊢ ( 𝜑 → ( ( invg ‘ 𝑊 ) ‘ 𝑋 ) < 0 ) |
| 26 | 22 25 | eqbrtrd | ⊢ ( 𝜑 → ( - 1 · 𝑋 ) < 0 ) |
| 27 | 26 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → ( - 1 · 𝑋 ) < 0 ) |
| 28 | simpr | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → 𝑌 = 0 ) | |
| 29 | 27 28 | breqtrrd | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → ( - 1 · 𝑋 ) < 𝑌 ) |
| 30 | isogrp | ⊢ ( 𝑊 ∈ oGrp ↔ ( 𝑊 ∈ Grp ∧ 𝑊 ∈ oMnd ) ) | |
| 31 | 30 | simprbi | ⊢ ( 𝑊 ∈ oGrp → 𝑊 ∈ oMnd ) |
| 32 | omndtos | ⊢ ( 𝑊 ∈ oMnd → 𝑊 ∈ Toset ) | |
| 33 | 6 31 32 | 3syl | ⊢ ( 𝜑 → 𝑊 ∈ Toset ) |
| 34 | tospos | ⊢ ( 𝑊 ∈ Toset → 𝑊 ∈ Poset ) | |
| 35 | 33 34 | syl | ⊢ ( 𝜑 → 𝑊 ∈ Poset ) |
| 36 | 1 2 | grpidcl | ⊢ ( 𝑊 ∈ Grp → 0 ∈ 𝐵 ) |
| 37 | 6 13 36 | 3syl | ⊢ ( 𝜑 → 0 ∈ 𝐵 ) |
| 38 | 1 4 | posref | ⊢ ( ( 𝑊 ∈ Poset ∧ 0 ∈ 𝐵 ) → 0 ≤ 0 ) |
| 39 | 35 37 38 | syl2anc | ⊢ ( 𝜑 → 0 ≤ 0 ) |
| 40 | 39 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → 0 ≤ 0 ) |
| 41 | 1m1e0 | ⊢ ( 1 − 1 ) = 0 | |
| 42 | 41 | negeqi | ⊢ - ( 1 − 1 ) = - 0 |
| 43 | ax-1cn | ⊢ 1 ∈ ℂ | |
| 44 | 43 43 | negsubdii | ⊢ - ( 1 − 1 ) = ( - 1 + 1 ) |
| 45 | neg0 | ⊢ - 0 = 0 | |
| 46 | 42 44 45 | 3eqtr3i | ⊢ ( - 1 + 1 ) = 0 |
| 47 | 46 | oveq1i | ⊢ ( ( - 1 + 1 ) · 𝑋 ) = ( 0 · 𝑋 ) |
| 48 | 1 2 5 | mulg0 | ⊢ ( 𝑋 ∈ 𝐵 → ( 0 · 𝑋 ) = 0 ) |
| 49 | 8 48 | syl | ⊢ ( 𝜑 → ( 0 · 𝑋 ) = 0 ) |
| 50 | 47 49 | eqtrid | ⊢ ( 𝜑 → ( ( - 1 + 1 ) · 𝑋 ) = 0 ) |
| 51 | 50 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → ( ( - 1 + 1 ) · 𝑋 ) = 0 ) |
| 52 | 40 28 51 | 3brtr4d | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → 𝑌 ≤ ( ( - 1 + 1 ) · 𝑋 ) ) |
| 53 | 29 52 | jca | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → ( ( - 1 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( - 1 + 1 ) · 𝑋 ) ) ) |
| 54 | oveq1 | ⊢ ( 𝑛 = - 1 → ( 𝑛 · 𝑋 ) = ( - 1 · 𝑋 ) ) | |
| 55 | 54 | breq1d | ⊢ ( 𝑛 = - 1 → ( ( 𝑛 · 𝑋 ) < 𝑌 ↔ ( - 1 · 𝑋 ) < 𝑌 ) ) |
| 56 | oveq1 | ⊢ ( 𝑛 = - 1 → ( 𝑛 + 1 ) = ( - 1 + 1 ) ) | |
| 57 | 56 | oveq1d | ⊢ ( 𝑛 = - 1 → ( ( 𝑛 + 1 ) · 𝑋 ) = ( ( - 1 + 1 ) · 𝑋 ) ) |
| 58 | 57 | breq2d | ⊢ ( 𝑛 = - 1 → ( 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ↔ 𝑌 ≤ ( ( - 1 + 1 ) · 𝑋 ) ) ) |
| 59 | 55 58 | anbi12d | ⊢ ( 𝑛 = - 1 → ( ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ↔ ( ( - 1 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( - 1 + 1 ) · 𝑋 ) ) ) ) |
| 60 | 59 | rspcev | ⊢ ( ( - 1 ∈ ℤ ∧ ( ( - 1 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( - 1 + 1 ) · 𝑋 ) ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 61 | 12 53 60 | sylancr | ⊢ ( ( 𝜑 ∧ 𝑌 = 0 ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 62 | simpr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑚 ∈ ℕ0 ) | |
| 63 | 62 | nn0zd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑚 ∈ ℤ ) |
| 64 | 63 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → 𝑚 ∈ ℤ ) |
| 65 | 64 | znegcld | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → - 𝑚 ∈ ℤ ) |
| 66 | 2z | ⊢ 2 ∈ ℤ | |
| 67 | 66 | a1i | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → 2 ∈ ℤ ) |
| 68 | 65 67 | zsubcld | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( - 𝑚 − 2 ) ∈ ℤ ) |
| 69 | nn0cn | ⊢ ( 𝑚 ∈ ℕ0 → 𝑚 ∈ ℂ ) | |
| 70 | 69 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑚 ∈ ℂ ) |
| 71 | 2cnd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 2 ∈ ℂ ) | |
| 72 | 70 71 | negdi2d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → - ( 𝑚 + 2 ) = ( - 𝑚 − 2 ) ) |
| 73 | 72 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - ( 𝑚 + 2 ) · 𝑋 ) = ( ( - 𝑚 − 2 ) · 𝑋 ) ) |
| 74 | 6 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑊 ∈ oGrp ) |
| 75 | 11 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( oppg ‘ 𝑊 ) ∈ oGrp ) |
| 76 | 74 75 | jca | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ) |
| 77 | 14 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑊 ∈ Grp ) |
| 78 | 63 | peano2zd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑚 + 1 ) ∈ ℤ ) |
| 79 | 8 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑋 ∈ 𝐵 ) |
| 80 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑚 + 1 ) ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) |
| 81 | 77 78 79 80 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) |
| 82 | 66 | a1i | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 2 ∈ ℤ ) |
| 83 | 63 82 | zaddcld | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑚 + 2 ) ∈ ℤ ) |
| 84 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑚 + 2 ) ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( ( 𝑚 + 2 ) · 𝑋 ) ∈ 𝐵 ) |
| 85 | 77 83 79 84 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 𝑚 + 2 ) · 𝑋 ) ∈ 𝐵 ) |
| 86 | 77 36 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 0 ∈ 𝐵 ) |
| 87 | 10 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 0 < 𝑋 ) |
| 88 | eqid | ⊢ ( +g ‘ 𝑊 ) = ( +g ‘ 𝑊 ) | |
| 89 | 1 3 88 | ogrpaddlt | ⊢ ( ( 𝑊 ∈ oGrp ∧ ( 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) ∧ 0 < 𝑋 ) → ( 0 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) < ( 𝑋 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 90 | 74 86 79 81 87 89 | syl131anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 0 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) < ( 𝑋 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 91 | 1 88 2 | grplid | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) → ( 0 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) = ( ( 𝑚 + 1 ) · 𝑋 ) ) |
| 92 | 77 81 91 | syl2anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 0 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) = ( ( 𝑚 + 1 ) · 𝑋 ) ) |
| 93 | 1cnd | ⊢ ( 𝑚 ∈ ℕ0 → 1 ∈ ℂ ) | |
| 94 | 69 93 93 | addassd | ⊢ ( 𝑚 ∈ ℕ0 → ( ( 𝑚 + 1 ) + 1 ) = ( 𝑚 + ( 1 + 1 ) ) ) |
| 95 | 1p1e2 | ⊢ ( 1 + 1 ) = 2 | |
| 96 | 95 | oveq2i | ⊢ ( 𝑚 + ( 1 + 1 ) ) = ( 𝑚 + 2 ) |
| 97 | 94 96 | eqtrdi | ⊢ ( 𝑚 ∈ ℕ0 → ( ( 𝑚 + 1 ) + 1 ) = ( 𝑚 + 2 ) ) |
| 98 | 69 93 | addcld | ⊢ ( 𝑚 ∈ ℕ0 → ( 𝑚 + 1 ) ∈ ℂ ) |
| 99 | 98 93 | addcomd | ⊢ ( 𝑚 ∈ ℕ0 → ( ( 𝑚 + 1 ) + 1 ) = ( 1 + ( 𝑚 + 1 ) ) ) |
| 100 | 97 99 | eqtr3d | ⊢ ( 𝑚 ∈ ℕ0 → ( 𝑚 + 2 ) = ( 1 + ( 𝑚 + 1 ) ) ) |
| 101 | 100 | oveq1d | ⊢ ( 𝑚 ∈ ℕ0 → ( ( 𝑚 + 2 ) · 𝑋 ) = ( ( 1 + ( 𝑚 + 1 ) ) · 𝑋 ) ) |
| 102 | 101 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 𝑚 + 2 ) · 𝑋 ) = ( ( 1 + ( 𝑚 + 1 ) ) · 𝑋 ) ) |
| 103 | 1zzd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 1 ∈ ℤ ) | |
| 104 | 1 5 88 | mulgdir | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 1 ∈ ℤ ∧ ( 𝑚 + 1 ) ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) ) → ( ( 1 + ( 𝑚 + 1 ) ) · 𝑋 ) = ( ( 1 · 𝑋 ) ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 105 | 77 103 78 79 104 | syl13anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 1 + ( 𝑚 + 1 ) ) · 𝑋 ) = ( ( 1 · 𝑋 ) ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 106 | 79 19 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 1 · 𝑋 ) = 𝑋 ) |
| 107 | 106 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 1 · 𝑋 ) ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) = ( 𝑋 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 108 | 102 105 107 | 3eqtrrd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑋 ( +g ‘ 𝑊 ) ( ( 𝑚 + 1 ) · 𝑋 ) ) = ( ( 𝑚 + 2 ) · 𝑋 ) ) |
| 109 | 90 92 108 | 3brtr3d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 𝑚 + 1 ) · 𝑋 ) < ( ( 𝑚 + 2 ) · 𝑋 ) ) |
| 110 | 1 3 16 | ogrpinvlt | ⊢ ( ( ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ∧ ( ( 𝑚 + 2 ) · 𝑋 ) ∈ 𝐵 ) → ( ( ( 𝑚 + 1 ) · 𝑋 ) < ( ( 𝑚 + 2 ) · 𝑋 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 2 ) · 𝑋 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ) |
| 111 | 110 | biimpa | ⊢ ( ( ( ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ∧ ( ( 𝑚 + 2 ) · 𝑋 ) ∈ 𝐵 ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) < ( ( 𝑚 + 2 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 2 ) · 𝑋 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 112 | 76 81 85 109 111 | syl31anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 2 ) · 𝑋 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 113 | 1 5 16 | mulgneg | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑚 + 2 ) ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( - ( 𝑚 + 2 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 2 ) · 𝑋 ) ) ) |
| 114 | 77 83 79 113 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - ( 𝑚 + 2 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 2 ) · 𝑋 ) ) ) |
| 115 | 1 5 16 | mulgneg | ⊢ ( ( 𝑊 ∈ Grp ∧ ( 𝑚 + 1 ) ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( - ( 𝑚 + 1 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 116 | 77 78 79 115 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - ( 𝑚 + 1 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 117 | 112 114 116 | 3brtr4d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - ( 𝑚 + 2 ) · 𝑋 ) < ( - ( 𝑚 + 1 ) · 𝑋 ) ) |
| 118 | 73 117 | eqbrtrrd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( - 𝑚 − 2 ) · 𝑋 ) < ( - ( 𝑚 + 1 ) · 𝑋 ) ) |
| 119 | 118 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( - 𝑚 − 2 ) · 𝑋 ) < ( - ( 𝑚 + 1 ) · 𝑋 ) ) |
| 120 | 116 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( - ( 𝑚 + 1 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 121 | 35 | ad4antr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → 𝑊 ∈ Poset ) |
| 122 | 1 16 | grpinvcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑌 ∈ 𝐵 ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) |
| 123 | 14 9 122 | syl2anc | ⊢ ( 𝜑 → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) |
| 124 | 123 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) |
| 125 | 124 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) |
| 126 | 81 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) |
| 127 | simplrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) | |
| 128 | simpr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) | |
| 129 | 1 4 | posasymb | ⊢ ( ( 𝑊 ∈ Poset ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) → ( ( ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) ↔ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) = ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 130 | 129 | biimpa | ⊢ ( ( ( 𝑊 ∈ Poset ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) ∧ ( ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) = ( ( 𝑚 + 1 ) · 𝑋 ) ) |
| 131 | 121 125 126 127 128 130 | syl32anc | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) = ( ( 𝑚 + 1 ) · 𝑋 ) ) |
| 132 | 131 | fveq2d | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 133 | 1 16 | grpinvinv | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑌 ∈ 𝐵 ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) = 𝑌 ) |
| 134 | 14 9 133 | syl2anc | ⊢ ( 𝜑 → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) = 𝑌 ) |
| 135 | 134 | ad4antr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) = 𝑌 ) |
| 136 | 120 132 135 | 3eqtr2rd | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → 𝑌 = ( - ( 𝑚 + 1 ) · 𝑋 ) ) |
| 137 | 119 136 | breqtrrd | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( - 𝑚 − 2 ) · 𝑋 ) < 𝑌 ) |
| 138 | 1cnd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 1 ∈ ℂ ) | |
| 139 | 70 71 138 | addsubassd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 𝑚 + 2 ) − 1 ) = ( 𝑚 + ( 2 − 1 ) ) ) |
| 140 | 2m1e1 | ⊢ ( 2 − 1 ) = 1 | |
| 141 | 140 | oveq2i | ⊢ ( 𝑚 + ( 2 − 1 ) ) = ( 𝑚 + 1 ) |
| 142 | 139 141 | eqtr2di | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑚 + 1 ) = ( ( 𝑚 + 2 ) − 1 ) ) |
| 143 | 142 | negeqd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → - ( 𝑚 + 1 ) = - ( ( 𝑚 + 2 ) − 1 ) ) |
| 144 | 70 71 | addcld | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑚 + 2 ) ∈ ℂ ) |
| 145 | 144 138 | negsubdid | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → - ( ( 𝑚 + 2 ) − 1 ) = ( - ( 𝑚 + 2 ) + 1 ) ) |
| 146 | 72 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - ( 𝑚 + 2 ) + 1 ) = ( ( - 𝑚 − 2 ) + 1 ) ) |
| 147 | 143 145 146 | 3eqtrrd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( - 𝑚 − 2 ) + 1 ) = - ( 𝑚 + 1 ) ) |
| 148 | 147 | oveq1d | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) = ( - ( 𝑚 + 1 ) · 𝑋 ) ) |
| 149 | 33 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑊 ∈ Toset ) |
| 150 | 149 34 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → 𝑊 ∈ Poset ) |
| 151 | 63 | znegcld | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → - 𝑚 ∈ ℤ ) |
| 152 | 151 82 | zsubcld | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - 𝑚 − 2 ) ∈ ℤ ) |
| 153 | 152 | peano2zd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( - 𝑚 − 2 ) + 1 ) ∈ ℤ ) |
| 154 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ ( ( - 𝑚 − 2 ) + 1 ) ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ∈ 𝐵 ) |
| 155 | 77 153 79 154 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ∈ 𝐵 ) |
| 156 | 1 4 | posref | ⊢ ( ( 𝑊 ∈ Poset ∧ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ∈ 𝐵 ) → ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) |
| 157 | 150 155 156 | syl2anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) |
| 158 | 148 157 | eqbrtrrd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) |
| 159 | 158 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( - ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) |
| 160 | 136 159 | eqbrtrd | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → 𝑌 ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) |
| 161 | oveq1 | ⊢ ( 𝑛 = ( - 𝑚 − 2 ) → ( 𝑛 · 𝑋 ) = ( ( - 𝑚 − 2 ) · 𝑋 ) ) | |
| 162 | 161 | breq1d | ⊢ ( 𝑛 = ( - 𝑚 − 2 ) → ( ( 𝑛 · 𝑋 ) < 𝑌 ↔ ( ( - 𝑚 − 2 ) · 𝑋 ) < 𝑌 ) ) |
| 163 | oveq1 | ⊢ ( 𝑛 = ( - 𝑚 − 2 ) → ( 𝑛 + 1 ) = ( ( - 𝑚 − 2 ) + 1 ) ) | |
| 164 | 163 | oveq1d | ⊢ ( 𝑛 = ( - 𝑚 − 2 ) → ( ( 𝑛 + 1 ) · 𝑋 ) = ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) |
| 165 | 164 | breq2d | ⊢ ( 𝑛 = ( - 𝑚 − 2 ) → ( 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ↔ 𝑌 ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) ) |
| 166 | 162 165 | anbi12d | ⊢ ( 𝑛 = ( - 𝑚 − 2 ) → ( ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ↔ ( ( ( - 𝑚 − 2 ) · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) ) ) |
| 167 | 166 | rspcev | ⊢ ( ( ( - 𝑚 − 2 ) ∈ ℤ ∧ ( ( ( - 𝑚 − 2 ) · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( ( - 𝑚 − 2 ) + 1 ) · 𝑋 ) ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 168 | 68 137 160 167 | syl12anc | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 169 | 78 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( 𝑚 + 1 ) ∈ ℤ ) |
| 170 | 169 | znegcld | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → - ( 𝑚 + 1 ) ∈ ℤ ) |
| 171 | 6 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ ( 𝑚 ∈ ℕ0 ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) ) → 𝑊 ∈ oGrp ) |
| 172 | 11 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ ( 𝑚 ∈ ℕ0 ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) ) → ( oppg ‘ 𝑊 ) ∈ oGrp ) |
| 173 | 171 172 | jca | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ ( 𝑚 ∈ ℕ0 ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) ) → ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ) |
| 174 | 173 | 3anassrs | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ) |
| 175 | 124 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) |
| 176 | 81 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) |
| 177 | simpr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) | |
| 178 | 1 3 16 | ogrpinvlt | ⊢ ( ( ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) → ( ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) ) ) |
| 179 | 178 | biimpa | ⊢ ( ( ( ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) ) |
| 180 | 174 175 176 177 179 | syl31anc | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) ) |
| 181 | 116 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( - ( 𝑚 + 1 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 182 | 181 | eqcomd | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( 𝑚 + 1 ) · 𝑋 ) ) = ( - ( 𝑚 + 1 ) · 𝑋 ) ) |
| 183 | 134 | ad4antr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) = 𝑌 ) |
| 184 | 180 182 183 | 3brtr3d | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( - ( 𝑚 + 1 ) · 𝑋 ) < 𝑌 ) |
| 185 | simp-4l | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → 𝜑 ) | |
| 186 | 1 5 | mulgcl | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑚 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( 𝑚 · 𝑋 ) ∈ 𝐵 ) |
| 187 | 77 63 79 186 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( 𝑚 · 𝑋 ) ∈ 𝐵 ) |
| 188 | 1 3 16 | ogrpinvlt | ⊢ ( ( ( 𝑊 ∈ oGrp ∧ ( oppg ‘ 𝑊 ) ∈ oGrp ) ∧ ( 𝑚 · 𝑋 ) ∈ 𝐵 ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) → ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) ) |
| 189 | 76 187 124 188 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) ) |
| 190 | 189 | biimpa | ⊢ ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 191 | 190 | adantrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 192 | 191 | adantr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 193 | negdi | ⊢ ( ( 𝑚 ∈ ℂ ∧ 1 ∈ ℂ ) → - ( 𝑚 + 1 ) = ( - 𝑚 + - 1 ) ) | |
| 194 | 69 43 193 | sylancl | ⊢ ( 𝑚 ∈ ℕ0 → - ( 𝑚 + 1 ) = ( - 𝑚 + - 1 ) ) |
| 195 | 194 | oveq1d | ⊢ ( 𝑚 ∈ ℕ0 → ( - ( 𝑚 + 1 ) + 1 ) = ( ( - 𝑚 + - 1 ) + 1 ) ) |
| 196 | 69 | negcld | ⊢ ( 𝑚 ∈ ℕ0 → - 𝑚 ∈ ℂ ) |
| 197 | 93 | negcld | ⊢ ( 𝑚 ∈ ℕ0 → - 1 ∈ ℂ ) |
| 198 | 196 197 93 | addassd | ⊢ ( 𝑚 ∈ ℕ0 → ( ( - 𝑚 + - 1 ) + 1 ) = ( - 𝑚 + ( - 1 + 1 ) ) ) |
| 199 | 46 | oveq2i | ⊢ ( - 𝑚 + ( - 1 + 1 ) ) = ( - 𝑚 + 0 ) |
| 200 | 199 | a1i | ⊢ ( 𝑚 ∈ ℕ0 → ( - 𝑚 + ( - 1 + 1 ) ) = ( - 𝑚 + 0 ) ) |
| 201 | 196 | addridd | ⊢ ( 𝑚 ∈ ℕ0 → ( - 𝑚 + 0 ) = - 𝑚 ) |
| 202 | 198 200 201 | 3eqtrd | ⊢ ( 𝑚 ∈ ℕ0 → ( ( - 𝑚 + - 1 ) + 1 ) = - 𝑚 ) |
| 203 | 195 202 | eqtrd | ⊢ ( 𝑚 ∈ ℕ0 → ( - ( 𝑚 + 1 ) + 1 ) = - 𝑚 ) |
| 204 | 203 | oveq1d | ⊢ ( 𝑚 ∈ ℕ0 → ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) = ( - 𝑚 · 𝑋 ) ) |
| 205 | 204 | adantl | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) = ( - 𝑚 · 𝑋 ) ) |
| 206 | 1 5 16 | mulgneg | ⊢ ( ( 𝑊 ∈ Grp ∧ 𝑚 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ) → ( - 𝑚 · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 207 | 77 63 79 206 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( - 𝑚 · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 208 | 205 207 | eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 209 | 208 | ad2antrr | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) = ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) ) |
| 210 | 209 | eqcomd | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ( ( invg ‘ 𝑊 ) ‘ ( 𝑚 · 𝑋 ) ) = ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) |
| 211 | 192 183 210 | 3brtr3d | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → 𝑌 < ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) |
| 212 | ovexd | ⊢ ( 𝜑 → ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ∈ V ) | |
| 213 | 4 3 | pltle | ⊢ ( ( 𝑊 ∈ oGrp ∧ 𝑌 ∈ 𝐵 ∧ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ∈ V ) → ( 𝑌 < ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) → 𝑌 ≤ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) ) |
| 214 | 6 9 212 213 | syl3anc | ⊢ ( 𝜑 → ( 𝑌 < ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) → 𝑌 ≤ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) ) |
| 215 | 185 211 214 | sylc | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → 𝑌 ≤ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) |
| 216 | oveq1 | ⊢ ( 𝑛 = - ( 𝑚 + 1 ) → ( 𝑛 · 𝑋 ) = ( - ( 𝑚 + 1 ) · 𝑋 ) ) | |
| 217 | 216 | breq1d | ⊢ ( 𝑛 = - ( 𝑚 + 1 ) → ( ( 𝑛 · 𝑋 ) < 𝑌 ↔ ( - ( 𝑚 + 1 ) · 𝑋 ) < 𝑌 ) ) |
| 218 | oveq1 | ⊢ ( 𝑛 = - ( 𝑚 + 1 ) → ( 𝑛 + 1 ) = ( - ( 𝑚 + 1 ) + 1 ) ) | |
| 219 | 218 | oveq1d | ⊢ ( 𝑛 = - ( 𝑚 + 1 ) → ( ( 𝑛 + 1 ) · 𝑋 ) = ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) |
| 220 | 219 | breq2d | ⊢ ( 𝑛 = - ( 𝑚 + 1 ) → ( 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ↔ 𝑌 ≤ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) ) |
| 221 | 217 220 | anbi12d | ⊢ ( 𝑛 = - ( 𝑚 + 1 ) → ( ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ↔ ( ( - ( 𝑚 + 1 ) · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) ) ) |
| 222 | 221 | rspcev | ⊢ ( ( - ( 𝑚 + 1 ) ∈ ℤ ∧ ( ( - ( 𝑚 + 1 ) · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( - ( 𝑚 + 1 ) + 1 ) · 𝑋 ) ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 223 | 170 184 215 222 | syl12anc | ⊢ ( ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 224 | 1 4 3 | tlt2 | ⊢ ( ( 𝑊 ∈ Toset ∧ ( ( 𝑚 + 1 ) · 𝑋 ) ∈ 𝐵 ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) → ( ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∨ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 225 | 149 81 124 224 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) → ( ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∨ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 226 | 225 | adantr | ⊢ ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) → ( ( ( 𝑚 + 1 ) · 𝑋 ) ≤ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∨ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) < ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 227 | 168 223 226 | mpjaodan | ⊢ ( ( ( ( 𝜑 ∧ 𝑌 < 0 ) ∧ 𝑚 ∈ ℕ0 ) ∧ ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 228 | 6 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → 𝑊 ∈ oGrp ) |
| 229 | 7 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → 𝑊 ∈ Archi ) |
| 230 | 8 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → 𝑋 ∈ 𝐵 ) |
| 231 | 123 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) |
| 232 | 10 | adantr | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → 0 < 𝑋 ) |
| 233 | 134 | breq1d | ⊢ ( 𝜑 → ( ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < 0 ↔ 𝑌 < 0 ) ) |
| 234 | 233 | biimpar | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < 0 ) |
| 235 | 1 3 16 2 | ogrpinv0lt | ⊢ ( ( 𝑊 ∈ oGrp ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∈ 𝐵 ) → ( 0 < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < 0 ) ) |
| 236 | 6 123 235 | syl2anc | ⊢ ( 𝜑 → ( 0 < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ↔ ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < 0 ) ) |
| 237 | 236 | biimpar | ⊢ ( ( 𝜑 ∧ ( ( invg ‘ 𝑊 ) ‘ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) < 0 ) → 0 < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) |
| 238 | 234 237 | syldan | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → 0 < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ) |
| 239 | 1 2 3 4 5 228 229 230 231 232 238 | archirng | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → ∃ 𝑚 ∈ ℕ0 ( ( 𝑚 · 𝑋 ) < ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ∧ ( ( invg ‘ 𝑊 ) ‘ 𝑌 ) ≤ ( ( 𝑚 + 1 ) · 𝑋 ) ) ) |
| 240 | 227 239 | r19.29a | ⊢ ( ( 𝜑 ∧ 𝑌 < 0 ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 241 | nn0ssz | ⊢ ℕ0 ⊆ ℤ | |
| 242 | 6 | adantr | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → 𝑊 ∈ oGrp ) |
| 243 | 7 | adantr | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → 𝑊 ∈ Archi ) |
| 244 | 8 | adantr | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → 𝑋 ∈ 𝐵 ) |
| 245 | 9 | adantr | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → 𝑌 ∈ 𝐵 ) |
| 246 | 10 | adantr | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → 0 < 𝑋 ) |
| 247 | simpr | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → 0 < 𝑌 ) | |
| 248 | 1 2 3 4 5 242 243 244 245 246 247 | archirng | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → ∃ 𝑛 ∈ ℕ0 ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 249 | ssrexv | ⊢ ( ℕ0 ⊆ ℤ → ( ∃ 𝑛 ∈ ℕ0 ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) ) | |
| 250 | 241 248 249 | mpsyl | ⊢ ( ( 𝜑 ∧ 0 < 𝑌 ) → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |
| 251 | 1 3 | tlt3 | ⊢ ( ( 𝑊 ∈ Toset ∧ 𝑌 ∈ 𝐵 ∧ 0 ∈ 𝐵 ) → ( 𝑌 = 0 ∨ 𝑌 < 0 ∨ 0 < 𝑌 ) ) |
| 252 | 33 9 37 251 | syl3anc | ⊢ ( 𝜑 → ( 𝑌 = 0 ∨ 𝑌 < 0 ∨ 0 < 𝑌 ) ) |
| 253 | 61 240 250 252 | mpjao3dan | ⊢ ( 𝜑 → ∃ 𝑛 ∈ ℤ ( ( 𝑛 · 𝑋 ) < 𝑌 ∧ 𝑌 ≤ ( ( 𝑛 + 1 ) · 𝑋 ) ) ) |