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| Mirrors > Home > MPE Home > Th. List > fzindd | Structured version Visualization version GIF version | ||
| Description: Induction on the integers from M to N inclusive, a deduction version. (Contributed by metakunt, 12-May-2024.) |
| Ref | Expression |
|---|---|
| fzindd.1 | ⊢ (𝑥 = 𝑀 → (𝜓 ↔ 𝜒)) |
| fzindd.2 | ⊢ (𝑥 = 𝑦 → (𝜓 ↔ 𝜃)) |
| fzindd.3 | ⊢ (𝑥 = (𝑦 + 1) → (𝜓 ↔ 𝜏)) |
| fzindd.4 | ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜂)) |
| fzindd.5 | ⊢ (𝜑 → 𝜒) |
| fzindd.6 | ⊢ ((𝜑 ∧ (𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁) ∧ 𝜃) → 𝜏) |
| fzindd.7 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| fzindd.8 | ⊢ (𝜑 → 𝑁 ∈ ℤ) |
| fzindd.9 | ⊢ (𝜑 → 𝑀 ≤ 𝑁) |
| Ref | Expression |
|---|---|
| fzindd | ⊢ ((𝜑 ∧ (𝐴 ∈ ℤ ∧ 𝑀 ≤ 𝐴 ∧ 𝐴 ≤ 𝑁)) → 𝜂) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fzindd.7 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 2 | fzindd.8 | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
| 3 | 1, 2 | jca 519 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ)) |
| 4 | fzindd.1 | . . . . . 6 ⊢ (𝑥 = 𝑀 → (𝜓 ↔ 𝜒)) | |
| 5 | 4 | imbi2d 342 | . . . . 5 ⊢ (𝑥 = 𝑀 → ((𝜑 → 𝜓) ↔ (𝜑 → 𝜒))) |
| 6 | fzindd.2 | . . . . . 6 ⊢ (𝑥 = 𝑦 → (𝜓 ↔ 𝜃)) | |
| 7 | 6 | imbi2d 342 | . . . . 5 ⊢ (𝑥 = 𝑦 → ((𝜑 → 𝜓) ↔ (𝜑 → 𝜃))) |
| 8 | fzindd.3 | . . . . . 6 ⊢ (𝑥 = (𝑦 + 1) → (𝜓 ↔ 𝜏)) | |
| 9 | 8 | imbi2d 342 | . . . . 5 ⊢ (𝑥 = (𝑦 + 1) → ((𝜑 → 𝜓) ↔ (𝜑 → 𝜏))) |
| 10 | fzindd.4 | . . . . . 6 ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜂)) | |
| 11 | 10 | imbi2d 342 | . . . . 5 ⊢ (𝑥 = 𝐴 → ((𝜑 → 𝜓) ↔ (𝜑 → 𝜂))) |
| 12 | fzindd.5 | . . . . . 6 ⊢ (𝜑 → 𝜒) | |
| 13 | 12 | a1i 11 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁) → (𝜑 → 𝜒)) |
| 14 | fzindd.6 | . . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁) ∧ 𝜃) → 𝜏) | |
| 15 | 14 | 3expa 1132 | . . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁)) ∧ 𝜃) → 𝜏) |
| 16 | 15 | ex 416 | . . . . . . . 8 ⊢ ((𝜑 ∧ (𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁)) → (𝜃 → 𝜏)) |
| 17 | 16 | expcom 417 | . . . . . . 7 ⊢ ((𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁) → (𝜑 → (𝜃 → 𝜏))) |
| 18 | 17 | a2d 29 | . . . . . 6 ⊢ ((𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁) → ((𝜑 → 𝜃) → (𝜑 → 𝜏))) |
| 19 | 18 | adantl 485 | . . . . 5 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝑦 ∈ ℤ ∧ 𝑀 ≤ 𝑦 ∧ 𝑦 < 𝑁)) → ((𝜑 → 𝜃) → (𝜑 → 𝜏))) |
| 20 | 5, 7, 9, 11, 13, 19 | fzind 12672 | . . . 4 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝐴 ∈ ℤ ∧ 𝑀 ≤ 𝐴 ∧ 𝐴 ≤ 𝑁)) → (𝜑 → 𝜂)) |
| 21 | 3, 20 | sylan 589 | . . 3 ⊢ ((𝜑 ∧ (𝐴 ∈ ℤ ∧ 𝑀 ≤ 𝐴 ∧ 𝐴 ≤ 𝑁)) → (𝜑 → 𝜂)) |
| 22 | 21 | imp 410 | . 2 ⊢ (((𝜑 ∧ (𝐴 ∈ ℤ ∧ 𝑀 ≤ 𝐴 ∧ 𝐴 ≤ 𝑁)) ∧ 𝜑) → 𝜂) |
| 23 | 22 | anabss1 676 | 1 ⊢ ((𝜑 ∧ (𝐴 ∈ ℤ ∧ 𝑀 ≤ 𝐴 ∧ 𝐴 ≤ 𝑁)) → 𝜂) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 ∧ w3a 1099 = wceq 1561 ∈ wcel 2143 class class class wbr 5101 (class class class)co 7397 1c1 11075 + caddc 11077 < clt 11217 ≤ cle 11218 ℤcz 12569 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7719 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 ax-pre-mulgt0 11151 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6289 df-ord 6350 df-on 6351 df-lim 6352 df-suc 6353 df-iota 6478 df-fun 6524 df-fn 6525 df-f 6526 df-f1 6527 df-fo 6528 df-f1o 6529 df-fv 6530 df-riota 7354 df-ov 7400 df-oprab 7401 df-mpo 7402 df-om 7848 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8382 df-er 8679 df-en 8929 df-dom 8930 df-sdom 8931 df-pnf 11219 df-mnf 11220 df-xr 11221 df-ltxr 11222 df-le 11223 df-sub 11417 df-neg 11418 df-nn 12212 df-n0 12483 df-z 12570 |
| This theorem is referenced by: lcmineqlem13 42659 aks6d1c1 42734 ormkglobd 47452 natglobalincr 47454 |
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