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Description: Lemma 3 for bgoldbtbnd . (Contributed by AV, 1-Aug-2020)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | bgoldbtbnd.m | ⊢ ( 𝜑 → 𝑀 ∈ ( ℤ≥ ‘ ; 1 1 ) ) | |
| bgoldbtbnd.n | ⊢ ( 𝜑 → 𝑁 ∈ ( ℤ≥ ‘ ; 1 1 ) ) | ||
| bgoldbtbnd.b | ⊢ ( 𝜑 → ∀ 𝑛 ∈ Even ( ( 4 < 𝑛 ∧ 𝑛 < 𝑁 ) → 𝑛 ∈ GoldbachEven ) ) | ||
| bgoldbtbnd.d | ⊢ ( 𝜑 → 𝐷 ∈ ( ℤ≥ ‘ 3 ) ) | ||
| bgoldbtbnd.f | ⊢ ( 𝜑 → 𝐹 ∈ ( RePart ‘ 𝐷 ) ) | ||
| bgoldbtbnd.i | ⊢ ( 𝜑 → ∀ 𝑖 ∈ ( 0 ..^ 𝐷 ) ( ( 𝐹 ‘ 𝑖 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) ) ) | ||
| bgoldbtbnd.0 | ⊢ ( 𝜑 → ( 𝐹 ‘ 0 ) = 7 ) | ||
| bgoldbtbnd.1 | ⊢ ( 𝜑 → ( 𝐹 ‘ 1 ) = ; 1 3 ) | ||
| bgoldbtbnd.l | ⊢ ( 𝜑 → 𝑀 < ( 𝐹 ‘ 𝐷 ) ) | ||
| bgoldbtbnd.r | ⊢ ( 𝜑 → ( 𝐹 ‘ 𝐷 ) ∈ ℝ ) | ||
| bgoldbtbndlem3.s | ⊢ 𝑆 = ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) | ||
| Assertion | bgoldbtbndlem3 | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) → ( 𝑆 ∈ Even ∧ 𝑆 < 𝑁 ∧ 4 < 𝑆 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bgoldbtbnd.m | ⊢ ( 𝜑 → 𝑀 ∈ ( ℤ≥ ‘ ; 1 1 ) ) | |
| 2 | bgoldbtbnd.n | ⊢ ( 𝜑 → 𝑁 ∈ ( ℤ≥ ‘ ; 1 1 ) ) | |
| 3 | bgoldbtbnd.b | ⊢ ( 𝜑 → ∀ 𝑛 ∈ Even ( ( 4 < 𝑛 ∧ 𝑛 < 𝑁 ) → 𝑛 ∈ GoldbachEven ) ) | |
| 4 | bgoldbtbnd.d | ⊢ ( 𝜑 → 𝐷 ∈ ( ℤ≥ ‘ 3 ) ) | |
| 5 | bgoldbtbnd.f | ⊢ ( 𝜑 → 𝐹 ∈ ( RePart ‘ 𝐷 ) ) | |
| 6 | bgoldbtbnd.i | ⊢ ( 𝜑 → ∀ 𝑖 ∈ ( 0 ..^ 𝐷 ) ( ( 𝐹 ‘ 𝑖 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) ) ) | |
| 7 | bgoldbtbnd.0 | ⊢ ( 𝜑 → ( 𝐹 ‘ 0 ) = 7 ) | |
| 8 | bgoldbtbnd.1 | ⊢ ( 𝜑 → ( 𝐹 ‘ 1 ) = ; 1 3 ) | |
| 9 | bgoldbtbnd.l | ⊢ ( 𝜑 → 𝑀 < ( 𝐹 ‘ 𝐷 ) ) | |
| 10 | bgoldbtbnd.r | ⊢ ( 𝜑 → ( 𝐹 ‘ 𝐷 ) ∈ ℝ ) | |
| 11 | bgoldbtbndlem3.s | ⊢ 𝑆 = ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) | |
| 12 | fzo0ss1 | ⊢ ( 1 ..^ 𝐷 ) ⊆ ( 0 ..^ 𝐷 ) | |
| 13 | 12 | sseli | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → 𝐼 ∈ ( 0 ..^ 𝐷 ) ) |
| 14 | fveq2 | ⊢ ( 𝑖 = 𝐼 → ( 𝐹 ‘ 𝑖 ) = ( 𝐹 ‘ 𝐼 ) ) | |
| 15 | 14 | eleq1d | ⊢ ( 𝑖 = 𝐼 → ( ( 𝐹 ‘ 𝑖 ) ∈ ( ℙ ∖ { 2 } ) ↔ ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ) ) |
| 16 | fvoveq1 | ⊢ ( 𝑖 = 𝐼 → ( 𝐹 ‘ ( 𝑖 + 1 ) ) = ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) | |
| 17 | 16 14 | oveq12d | ⊢ ( 𝑖 = 𝐼 → ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) = ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) |
| 18 | 17 | breq1d | ⊢ ( 𝑖 = 𝐼 → ( ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) < ( 𝑁 − 4 ) ↔ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) |
| 19 | 17 | breq2d | ⊢ ( 𝑖 = 𝐼 → ( 4 < ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) ↔ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) |
| 20 | 15 18 19 | 3anbi123d | ⊢ ( 𝑖 = 𝐼 → ( ( ( 𝐹 ‘ 𝑖 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) ) ↔ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ) |
| 21 | 20 | rspcv | ⊢ ( 𝐼 ∈ ( 0 ..^ 𝐷 ) → ( ∀ 𝑖 ∈ ( 0 ..^ 𝐷 ) ( ( 𝐹 ‘ 𝑖 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝑖 + 1 ) ) − ( 𝐹 ‘ 𝑖 ) ) ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ) |
| 22 | 13 6 21 | syl2imc | ⊢ ( 𝜑 → ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ) |
| 23 | 22 | a1d | ⊢ ( 𝜑 → ( 𝑋 ∈ Odd → ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ) ) |
| 24 | 23 | 3imp | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) |
| 25 | simp2 | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → 𝑋 ∈ Odd ) | |
| 26 | oddprmALTV | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) → ( 𝐹 ‘ 𝐼 ) ∈ Odd ) | |
| 27 | 26 | 3ad2ant1 | ⊢ ( ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) → ( 𝐹 ‘ 𝐼 ) ∈ Odd ) |
| 28 | 25 27 | anim12i | ⊢ ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) → ( 𝑋 ∈ Odd ∧ ( 𝐹 ‘ 𝐼 ) ∈ Odd ) ) |
| 29 | 28 | adantr | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → ( 𝑋 ∈ Odd ∧ ( 𝐹 ‘ 𝐼 ) ∈ Odd ) ) |
| 30 | omoeALTV | ⊢ ( ( 𝑋 ∈ Odd ∧ ( 𝐹 ‘ 𝐼 ) ∈ Odd ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) ∈ Even ) | |
| 31 | 29 30 | syl | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) ∈ Even ) |
| 32 | 11 31 | eqeltrid | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → 𝑆 ∈ Even ) |
| 33 | eldifi | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) → ( 𝐹 ‘ 𝐼 ) ∈ ℙ ) | |
| 34 | prmz | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ℙ → ( 𝐹 ‘ 𝐼 ) ∈ ℤ ) | |
| 35 | 34 | zred | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ℙ → ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) |
| 36 | fzofzp1 | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( 𝐼 + 1 ) ∈ ( 1 ... 𝐷 ) ) | |
| 37 | elfzo2 | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) ↔ ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) ∧ 𝐷 ∈ ℤ ∧ 𝐼 < 𝐷 ) ) | |
| 38 | 1zzd | ⊢ ( ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) ∧ 𝐷 ∈ ℤ ∧ 𝐼 < 𝐷 ) → 1 ∈ ℤ ) | |
| 39 | simp2 | ⊢ ( ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) ∧ 𝐷 ∈ ℤ ∧ 𝐼 < 𝐷 ) → 𝐷 ∈ ℤ ) | |
| 40 | eluz2 | ⊢ ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) ↔ ( 1 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 1 ≤ 𝐼 ) ) | |
| 41 | zre | ⊢ ( 1 ∈ ℤ → 1 ∈ ℝ ) | |
| 42 | zre | ⊢ ( 𝐼 ∈ ℤ → 𝐼 ∈ ℝ ) | |
| 43 | zre | ⊢ ( 𝐷 ∈ ℤ → 𝐷 ∈ ℝ ) | |
| 44 | leltletr | ⊢ ( ( 1 ∈ ℝ ∧ 𝐼 ∈ ℝ ∧ 𝐷 ∈ ℝ ) → ( ( 1 ≤ 𝐼 ∧ 𝐼 < 𝐷 ) → 1 ≤ 𝐷 ) ) | |
| 45 | 41 42 43 44 | syl3an | ⊢ ( ( 1 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝐷 ∈ ℤ ) → ( ( 1 ≤ 𝐼 ∧ 𝐼 < 𝐷 ) → 1 ≤ 𝐷 ) ) |
| 46 | 45 | exp5o | ⊢ ( 1 ∈ ℤ → ( 𝐼 ∈ ℤ → ( 𝐷 ∈ ℤ → ( 1 ≤ 𝐼 → ( 𝐼 < 𝐷 → 1 ≤ 𝐷 ) ) ) ) ) |
| 47 | 46 | com34 | ⊢ ( 1 ∈ ℤ → ( 𝐼 ∈ ℤ → ( 1 ≤ 𝐼 → ( 𝐷 ∈ ℤ → ( 𝐼 < 𝐷 → 1 ≤ 𝐷 ) ) ) ) ) |
| 48 | 47 | 3imp | ⊢ ( ( 1 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 1 ≤ 𝐼 ) → ( 𝐷 ∈ ℤ → ( 𝐼 < 𝐷 → 1 ≤ 𝐷 ) ) ) |
| 49 | 40 48 | sylbi | ⊢ ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) → ( 𝐷 ∈ ℤ → ( 𝐼 < 𝐷 → 1 ≤ 𝐷 ) ) ) |
| 50 | 49 | 3imp | ⊢ ( ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) ∧ 𝐷 ∈ ℤ ∧ 𝐼 < 𝐷 ) → 1 ≤ 𝐷 ) |
| 51 | eluz2 | ⊢ ( 𝐷 ∈ ( ℤ≥ ‘ 1 ) ↔ ( 1 ∈ ℤ ∧ 𝐷 ∈ ℤ ∧ 1 ≤ 𝐷 ) ) | |
| 52 | 38 39 50 51 | syl3anbrc | ⊢ ( ( 𝐼 ∈ ( ℤ≥ ‘ 1 ) ∧ 𝐷 ∈ ℤ ∧ 𝐼 < 𝐷 ) → 𝐷 ∈ ( ℤ≥ ‘ 1 ) ) |
| 53 | 37 52 | sylbi | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → 𝐷 ∈ ( ℤ≥ ‘ 1 ) ) |
| 54 | fzisfzounsn | ⊢ ( 𝐷 ∈ ( ℤ≥ ‘ 1 ) → ( 1 ... 𝐷 ) = ( ( 1 ..^ 𝐷 ) ∪ { 𝐷 } ) ) | |
| 55 | 53 54 | syl | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( 1 ... 𝐷 ) = ( ( 1 ..^ 𝐷 ) ∪ { 𝐷 } ) ) |
| 56 | 55 | eleq2d | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐼 + 1 ) ∈ ( 1 ... 𝐷 ) ↔ ( 𝐼 + 1 ) ∈ ( ( 1 ..^ 𝐷 ) ∪ { 𝐷 } ) ) ) |
| 57 | elun | ⊢ ( ( 𝐼 + 1 ) ∈ ( ( 1 ..^ 𝐷 ) ∪ { 𝐷 } ) ↔ ( ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ∨ ( 𝐼 + 1 ) ∈ { 𝐷 } ) ) | |
| 58 | 56 57 | bitrdi | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐼 + 1 ) ∈ ( 1 ... 𝐷 ) ↔ ( ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ∨ ( 𝐼 + 1 ) ∈ { 𝐷 } ) ) ) |
| 59 | eluz3nn | ⊢ ( 𝐷 ∈ ( ℤ≥ ‘ 3 ) → 𝐷 ∈ ℕ ) | |
| 60 | 4 59 | syl | ⊢ ( 𝜑 → 𝐷 ∈ ℕ ) |
| 61 | 60 | ad2antrl | ⊢ ( ( ( 𝐼 ∈ ( 1 ..^ 𝐷 ) ∧ ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ) ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → 𝐷 ∈ ℕ ) |
| 62 | 5 | ad2antrl | ⊢ ( ( ( 𝐼 ∈ ( 1 ..^ 𝐷 ) ∧ ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ) ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → 𝐹 ∈ ( RePart ‘ 𝐷 ) ) |
| 63 | simplr | ⊢ ( ( ( 𝐼 ∈ ( 1 ..^ 𝐷 ) ∧ ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ) ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ) | |
| 64 | 61 62 63 | iccpartipre | ⊢ ( ( ( 𝐼 ∈ ( 1 ..^ 𝐷 ) ∧ ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ) ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) |
| 65 | 64 | exp31 | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) ) |
| 66 | elsni | ⊢ ( ( 𝐼 + 1 ) ∈ { 𝐷 } → ( 𝐼 + 1 ) = 𝐷 ) | |
| 67 | 10 | ad2antrl | ⊢ ( ( ( 𝐼 + 1 ) = 𝐷 ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → ( 𝐹 ‘ 𝐷 ) ∈ ℝ ) |
| 68 | fveq2 | ⊢ ( ( 𝐼 + 1 ) = 𝐷 → ( 𝐹 ‘ ( 𝐼 + 1 ) ) = ( 𝐹 ‘ 𝐷 ) ) | |
| 69 | 68 | eleq1d | ⊢ ( ( 𝐼 + 1 ) = 𝐷 → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ↔ ( 𝐹 ‘ 𝐷 ) ∈ ℝ ) ) |
| 70 | 69 | adantr | ⊢ ( ( ( 𝐼 + 1 ) = 𝐷 ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ↔ ( 𝐹 ‘ 𝐷 ) ∈ ℝ ) ) |
| 71 | 67 70 | mpbird | ⊢ ( ( ( 𝐼 + 1 ) = 𝐷 ∧ ( 𝜑 ∧ 𝑋 ∈ Odd ) ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) |
| 72 | 71 | ex | ⊢ ( ( 𝐼 + 1 ) = 𝐷 → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) |
| 73 | 66 72 | syl | ⊢ ( ( 𝐼 + 1 ) ∈ { 𝐷 } → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) |
| 74 | 73 | a1i | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐼 + 1 ) ∈ { 𝐷 } → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) ) |
| 75 | 65 74 | jaod | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( ( 𝐼 + 1 ) ∈ ( 1 ..^ 𝐷 ) ∨ ( 𝐼 + 1 ) ∈ { 𝐷 } ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) ) |
| 76 | 58 75 | sylbid | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝐼 + 1 ) ∈ ( 1 ... 𝐷 ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) ) |
| 77 | 36 76 | mpd | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) |
| 78 | 77 | com12 | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( 𝐼 ∈ ( 1 ..^ 𝐷 ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) ) |
| 79 | 78 | 3impia | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) |
| 80 | eluzelre | ⊢ ( 𝑁 ∈ ( ℤ≥ ‘ ; 1 1 ) → 𝑁 ∈ ℝ ) | |
| 81 | 2 80 | syl | ⊢ ( 𝜑 → 𝑁 ∈ ℝ ) |
| 82 | oddz | ⊢ ( 𝑋 ∈ Odd → 𝑋 ∈ ℤ ) | |
| 83 | 82 | zred | ⊢ ( 𝑋 ∈ Odd → 𝑋 ∈ ℝ ) |
| 84 | rexr | ⊢ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ) | |
| 85 | rexr | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( 𝐹 ‘ 𝐼 ) ∈ ℝ* ) | |
| 86 | 84 85 | anim12ci | ⊢ ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ* ∧ ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ) ) |
| 87 | 86 | adantl | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ* ∧ ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ) ) |
| 88 | elico1 | ⊢ ( ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ* ∧ ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ* ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ↔ ( 𝑋 ∈ ℝ* ∧ ( 𝐹 ‘ 𝐼 ) ≤ 𝑋 ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ) ) | |
| 89 | 87 88 | syl | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ↔ ( 𝑋 ∈ ℝ* ∧ ( 𝐹 ‘ 𝐼 ) ≤ 𝑋 ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ) ) |
| 90 | simpllr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → 𝑋 ∈ ℝ ) | |
| 91 | simplrl | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ) | |
| 92 | simplrr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) | |
| 93 | simpr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) | |
| 94 | 90 91 92 93 | ltsub1dd | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) |
| 95 | simplr | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → 𝑋 ∈ ℝ ) | |
| 96 | simprr | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) | |
| 97 | 95 96 | resubcld | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) ∈ ℝ ) |
| 98 | 97 | adantr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) ∈ ℝ ) |
| 99 | 91 92 | resubcld | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ∈ ℝ ) |
| 100 | simplll | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → 𝑁 ∈ ℝ ) | |
| 101 | 4re | ⊢ 4 ∈ ℝ | |
| 102 | 101 | a1i | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → 4 ∈ ℝ ) |
| 103 | 100 102 | resubcld | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑁 − 4 ) ∈ ℝ ) |
| 104 | lttr | ⊢ ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) ∈ ℝ ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ∈ ℝ ∧ ( 𝑁 − 4 ) ∈ ℝ ) → ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) | |
| 105 | 98 99 103 104 | syl3anc | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) |
| 106 | 94 105 | mpand | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) |
| 107 | 106 | impr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ ( 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) |
| 108 | 4pos | ⊢ 0 < 4 | |
| 109 | 101 | a1i | ⊢ ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) → 4 ∈ ℝ ) |
| 110 | simpl | ⊢ ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) → 𝑁 ∈ ℝ ) | |
| 111 | 109 110 | ltsubposd | ⊢ ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) → ( 0 < 4 ↔ ( 𝑁 − 4 ) < 𝑁 ) ) |
| 112 | 108 111 | mpbii | ⊢ ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) → ( 𝑁 − 4 ) < 𝑁 ) |
| 113 | 112 | adantr | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝑁 − 4 ) < 𝑁 ) |
| 114 | 113 | adantr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ ( 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) → ( 𝑁 − 4 ) < 𝑁 ) |
| 115 | simpll | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → 𝑁 ∈ ℝ ) | |
| 116 | 101 | a1i | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → 4 ∈ ℝ ) |
| 117 | 115 116 | resubcld | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝑁 − 4 ) ∈ ℝ ) |
| 118 | lttr | ⊢ ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) ∈ ℝ ∧ ( 𝑁 − 4 ) ∈ ℝ ∧ 𝑁 ∈ ℝ ) → ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ ( 𝑁 − 4 ) < 𝑁 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) | |
| 119 | 97 117 115 118 | syl3anc | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ ( 𝑁 − 4 ) < 𝑁 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) |
| 120 | 119 | adantr | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ ( 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) → ( ( ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ ( 𝑁 − 4 ) < 𝑁 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) |
| 121 | 107 114 120 | mp2and | ⊢ ( ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) ∧ ( 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) |
| 122 | 121 | exp32 | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 123 | 122 | com12 | ⊢ ( 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) → ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 124 | 123 | 3ad2ant3 | ⊢ ( ( 𝑋 ∈ ℝ* ∧ ( 𝐹 ‘ 𝐼 ) ≤ 𝑋 ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 125 | 124 | com12 | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( ( 𝑋 ∈ ℝ* ∧ ( 𝐹 ‘ 𝐼 ) ≤ 𝑋 ∧ 𝑋 < ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 126 | 89 125 | sylbid | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 127 | 126 | com23 | ⊢ ( ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ ∧ ( 𝐹 ‘ 𝐼 ) ∈ ℝ ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 128 | 127 | exp32 | ⊢ ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) ) |
| 129 | 128 | com34 | ⊢ ( ( 𝑁 ∈ ℝ ∧ 𝑋 ∈ ℝ ) → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) ) |
| 130 | 81 83 129 | syl2an | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ) → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) ) |
| 131 | 130 | 3adant3 | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) ∈ ℝ → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) ) |
| 132 | 79 131 | mpd | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) |
| 133 | 132 | com13 | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ℝ → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) |
| 134 | 33 35 133 | 3syl | ⊢ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) → ( ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) ) |
| 135 | 134 | imp | ⊢ ( ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 136 | 135 | 3adant3 | ⊢ ( ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) → ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) ) |
| 137 | 136 | impcom | ⊢ ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) → ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) ) |
| 138 | 137 | imp | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) |
| 139 | 138 | adantrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → ( 𝑋 − ( 𝐹 ‘ 𝐼 ) ) < 𝑁 ) |
| 140 | 11 139 | eqbrtrid | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → 𝑆 < 𝑁 ) |
| 141 | simprr | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → 4 < 𝑆 ) | |
| 142 | 32 140 141 | 3jca | ⊢ ( ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) ∧ ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) ) → ( 𝑆 ∈ Even ∧ 𝑆 < 𝑁 ∧ 4 < 𝑆 ) ) |
| 143 | 142 | ex | ⊢ ( ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) ∧ ( ( 𝐹 ‘ 𝐼 ) ∈ ( ℙ ∖ { 2 } ) ∧ ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) < ( 𝑁 − 4 ) ∧ 4 < ( ( 𝐹 ‘ ( 𝐼 + 1 ) ) − ( 𝐹 ‘ 𝐼 ) ) ) ) → ( ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) → ( 𝑆 ∈ Even ∧ 𝑆 < 𝑁 ∧ 4 < 𝑆 ) ) ) |
| 144 | 24 143 | mpdan | ⊢ ( ( 𝜑 ∧ 𝑋 ∈ Odd ∧ 𝐼 ∈ ( 1 ..^ 𝐷 ) ) → ( ( 𝑋 ∈ ( ( 𝐹 ‘ 𝐼 ) [,) ( 𝐹 ‘ ( 𝐼 + 1 ) ) ) ∧ 4 < 𝑆 ) → ( 𝑆 ∈ Even ∧ 𝑆 < 𝑁 ∧ 4 < 𝑆 ) ) ) |