This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Lemma for icceuelpart . (Contributed by AV, 19-Jul-2020)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | iccpartiun.m | ⊢ ( 𝜑 → 𝑀 ∈ ℕ ) | |
| iccpartiun.p | ⊢ ( 𝜑 → 𝑃 ∈ ( RePart ‘ 𝑀 ) ) | ||
| Assertion | icceuelpartlem | ⊢ ( 𝜑 → ( ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐼 < 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) ≤ ( 𝑃 ‘ 𝐽 ) ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iccpartiun.m | ⊢ ( 𝜑 → 𝑀 ∈ ℕ ) | |
| 2 | iccpartiun.p | ⊢ ( 𝜑 → 𝑃 ∈ ( RePart ‘ 𝑀 ) ) | |
| 3 | fveq2 | ⊢ ( ( 𝐼 + 1 ) = 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) | |
| 4 | 3 | olcd | ⊢ ( ( 𝐼 + 1 ) = 𝐽 → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) |
| 5 | 4 | a1d | ⊢ ( ( 𝐼 + 1 ) = 𝐽 → ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) ) |
| 6 | elfzoelz | ⊢ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) → 𝐼 ∈ ℤ ) | |
| 7 | elfzoelz | ⊢ ( 𝐽 ∈ ( 0 ..^ 𝑀 ) → 𝐽 ∈ ℤ ) | |
| 8 | zltp1le | ⊢ ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) → ( 𝐼 < 𝐽 ↔ ( 𝐼 + 1 ) ≤ 𝐽 ) ) | |
| 9 | 8 | biimpcd | ⊢ ( 𝐼 < 𝐽 → ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) → ( 𝐼 + 1 ) ≤ 𝐽 ) ) |
| 10 | 9 | adantr | ⊢ ( ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) → ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) → ( 𝐼 + 1 ) ≤ 𝐽 ) ) |
| 11 | 10 | impcom | ⊢ ( ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) ∧ ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) ) → ( 𝐼 + 1 ) ≤ 𝐽 ) |
| 12 | df-ne | ⊢ ( ( 𝐼 + 1 ) ≠ 𝐽 ↔ ¬ ( 𝐼 + 1 ) = 𝐽 ) | |
| 13 | necom | ⊢ ( ( 𝐼 + 1 ) ≠ 𝐽 ↔ 𝐽 ≠ ( 𝐼 + 1 ) ) | |
| 14 | 12 13 | sylbb1 | ⊢ ( ¬ ( 𝐼 + 1 ) = 𝐽 → 𝐽 ≠ ( 𝐼 + 1 ) ) |
| 15 | 14 | adantl | ⊢ ( ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) → 𝐽 ≠ ( 𝐼 + 1 ) ) |
| 16 | 15 | adantl | ⊢ ( ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) ∧ ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) ) → 𝐽 ≠ ( 𝐼 + 1 ) ) |
| 17 | 11 16 | jca | ⊢ ( ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) ∧ ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) ) → ( ( 𝐼 + 1 ) ≤ 𝐽 ∧ 𝐽 ≠ ( 𝐼 + 1 ) ) ) |
| 18 | peano2z | ⊢ ( 𝐼 ∈ ℤ → ( 𝐼 + 1 ) ∈ ℤ ) | |
| 19 | 18 | zred | ⊢ ( 𝐼 ∈ ℤ → ( 𝐼 + 1 ) ∈ ℝ ) |
| 20 | zre | ⊢ ( 𝐽 ∈ ℤ → 𝐽 ∈ ℝ ) | |
| 21 | 19 20 | anim12i | ⊢ ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) → ( ( 𝐼 + 1 ) ∈ ℝ ∧ 𝐽 ∈ ℝ ) ) |
| 22 | 21 | adantr | ⊢ ( ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) ∧ ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) ) → ( ( 𝐼 + 1 ) ∈ ℝ ∧ 𝐽 ∈ ℝ ) ) |
| 23 | ltlen | ⊢ ( ( ( 𝐼 + 1 ) ∈ ℝ ∧ 𝐽 ∈ ℝ ) → ( ( 𝐼 + 1 ) < 𝐽 ↔ ( ( 𝐼 + 1 ) ≤ 𝐽 ∧ 𝐽 ≠ ( 𝐼 + 1 ) ) ) ) | |
| 24 | 22 23 | syl | ⊢ ( ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) ∧ ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) ) → ( ( 𝐼 + 1 ) < 𝐽 ↔ ( ( 𝐼 + 1 ) ≤ 𝐽 ∧ 𝐽 ≠ ( 𝐼 + 1 ) ) ) ) |
| 25 | 17 24 | mpbird | ⊢ ( ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) ∧ ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) ) → ( 𝐼 + 1 ) < 𝐽 ) |
| 26 | 25 | ex | ⊢ ( ( 𝐼 ∈ ℤ ∧ 𝐽 ∈ ℤ ) → ( ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) → ( 𝐼 + 1 ) < 𝐽 ) ) |
| 27 | 6 7 26 | syl2an | ⊢ ( ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) → ( ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) → ( 𝐼 + 1 ) < 𝐽 ) ) |
| 28 | 27 | adantl | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) → ( 𝐼 + 1 ) < 𝐽 ) ) |
| 29 | 1 2 | iccpartgt | ⊢ ( 𝜑 → ∀ 𝑖 ∈ ( 0 ... 𝑀 ) ∀ 𝑗 ∈ ( 0 ... 𝑀 ) ( 𝑖 < 𝑗 → ( 𝑃 ‘ 𝑖 ) < ( 𝑃 ‘ 𝑗 ) ) ) |
| 30 | fzofzp1 | ⊢ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) → ( 𝐼 + 1 ) ∈ ( 0 ... 𝑀 ) ) | |
| 31 | elfzofz | ⊢ ( 𝐽 ∈ ( 0 ..^ 𝑀 ) → 𝐽 ∈ ( 0 ... 𝑀 ) ) | |
| 32 | breq1 | ⊢ ( 𝑖 = ( 𝐼 + 1 ) → ( 𝑖 < 𝑗 ↔ ( 𝐼 + 1 ) < 𝑗 ) ) | |
| 33 | fveq2 | ⊢ ( 𝑖 = ( 𝐼 + 1 ) → ( 𝑃 ‘ 𝑖 ) = ( 𝑃 ‘ ( 𝐼 + 1 ) ) ) | |
| 34 | 33 | breq1d | ⊢ ( 𝑖 = ( 𝐼 + 1 ) → ( ( 𝑃 ‘ 𝑖 ) < ( 𝑃 ‘ 𝑗 ) ↔ ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝑗 ) ) ) |
| 35 | 32 34 | imbi12d | ⊢ ( 𝑖 = ( 𝐼 + 1 ) → ( ( 𝑖 < 𝑗 → ( 𝑃 ‘ 𝑖 ) < ( 𝑃 ‘ 𝑗 ) ) ↔ ( ( 𝐼 + 1 ) < 𝑗 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝑗 ) ) ) ) |
| 36 | breq2 | ⊢ ( 𝑗 = 𝐽 → ( ( 𝐼 + 1 ) < 𝑗 ↔ ( 𝐼 + 1 ) < 𝐽 ) ) | |
| 37 | fveq2 | ⊢ ( 𝑗 = 𝐽 → ( 𝑃 ‘ 𝑗 ) = ( 𝑃 ‘ 𝐽 ) ) | |
| 38 | 37 | breq2d | ⊢ ( 𝑗 = 𝐽 → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝑗 ) ↔ ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) |
| 39 | 36 38 | imbi12d | ⊢ ( 𝑗 = 𝐽 → ( ( ( 𝐼 + 1 ) < 𝑗 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝑗 ) ) ↔ ( ( 𝐼 + 1 ) < 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) ) |
| 40 | 35 39 | rspc2v | ⊢ ( ( ( 𝐼 + 1 ) ∈ ( 0 ... 𝑀 ) ∧ 𝐽 ∈ ( 0 ... 𝑀 ) ) → ( ∀ 𝑖 ∈ ( 0 ... 𝑀 ) ∀ 𝑗 ∈ ( 0 ... 𝑀 ) ( 𝑖 < 𝑗 → ( 𝑃 ‘ 𝑖 ) < ( 𝑃 ‘ 𝑗 ) ) → ( ( 𝐼 + 1 ) < 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) ) |
| 41 | 30 31 40 | syl2an | ⊢ ( ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) → ( ∀ 𝑖 ∈ ( 0 ... 𝑀 ) ∀ 𝑗 ∈ ( 0 ... 𝑀 ) ( 𝑖 < 𝑗 → ( 𝑃 ‘ 𝑖 ) < ( 𝑃 ‘ 𝑗 ) ) → ( ( 𝐼 + 1 ) < 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) ) |
| 42 | 29 41 | mpan9 | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( ( 𝐼 + 1 ) < 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) |
| 43 | 28 42 | syld | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( ( 𝐼 < 𝐽 ∧ ¬ ( 𝐼 + 1 ) = 𝐽 ) → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) |
| 44 | 43 | expdimp | ⊢ ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( ¬ ( 𝐼 + 1 ) = 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) ) |
| 45 | 44 | impcom | ⊢ ( ( ¬ ( 𝐼 + 1 ) = 𝐽 ∧ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) ) → ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ) |
| 46 | 45 | orcd | ⊢ ( ( ¬ ( 𝐼 + 1 ) = 𝐽 ∧ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) |
| 47 | 46 | ex | ⊢ ( ¬ ( 𝐼 + 1 ) = 𝐽 → ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) ) |
| 48 | 5 47 | pm2.61i | ⊢ ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) |
| 49 | 1 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → 𝑀 ∈ ℕ ) |
| 50 | 2 | adantr | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → 𝑃 ∈ ( RePart ‘ 𝑀 ) ) |
| 51 | 30 | adantr | ⊢ ( ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐼 + 1 ) ∈ ( 0 ... 𝑀 ) ) |
| 52 | 51 | adantl | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( 𝐼 + 1 ) ∈ ( 0 ... 𝑀 ) ) |
| 53 | 49 50 52 | iccpartxr | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( 𝑃 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ) |
| 54 | 31 | adantl | ⊢ ( ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) → 𝐽 ∈ ( 0 ... 𝑀 ) ) |
| 55 | 54 | adantl | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → 𝐽 ∈ ( 0 ... 𝑀 ) ) |
| 56 | 49 50 55 | iccpartxr | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( 𝑃 ‘ 𝐽 ) ∈ ℝ* ) |
| 57 | 53 56 | jca | ⊢ ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ∧ ( 𝑃 ‘ 𝐽 ) ∈ ℝ* ) ) |
| 58 | 57 | adantr | ⊢ ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ∧ ( 𝑃 ‘ 𝐽 ) ∈ ℝ* ) ) |
| 59 | xrleloe | ⊢ ( ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ∧ ( 𝑃 ‘ 𝐽 ) ∈ ℝ* ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) ≤ ( 𝑃 ‘ 𝐽 ) ↔ ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) ) | |
| 60 | 58 59 | syl | ⊢ ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) ≤ ( 𝑃 ‘ 𝐽 ) ↔ ( ( 𝑃 ‘ ( 𝐼 + 1 ) ) < ( 𝑃 ‘ 𝐽 ) ∨ ( 𝑃 ‘ ( 𝐼 + 1 ) ) = ( 𝑃 ‘ 𝐽 ) ) ) ) |
| 61 | 48 60 | mpbird | ⊢ ( ( ( 𝜑 ∧ ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) ) ∧ 𝐼 < 𝐽 ) → ( 𝑃 ‘ ( 𝐼 + 1 ) ) ≤ ( 𝑃 ‘ 𝐽 ) ) |
| 62 | 61 | exp31 | ⊢ ( 𝜑 → ( ( 𝐼 ∈ ( 0 ..^ 𝑀 ) ∧ 𝐽 ∈ ( 0 ..^ 𝑀 ) ) → ( 𝐼 < 𝐽 → ( 𝑃 ‘ ( 𝐼 + 1 ) ) ≤ ( 𝑃 ‘ 𝐽 ) ) ) ) |