| Mathbox for Glauco Siliprandi |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > rexanuz3 | Structured version Visualization version GIF version | ||
| Description: Combine two different upper integer properties into one, for a single integer. (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| rexanuz3.1 | ⊢ Ⅎ𝑗𝜑 |
| rexanuz3.2 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| rexanuz3.3 | ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜒) |
| rexanuz3.4 | ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜓) |
| rexanuz3.5 | ⊢ (𝑘 = 𝑗 → (𝜒 ↔ 𝜃)) |
| rexanuz3.6 | ⊢ (𝑘 = 𝑗 → (𝜓 ↔ 𝜏)) |
| Ref | Expression |
|---|---|
| rexanuz3 | ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 (𝜃 ∧ 𝜏)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rexanuz3.3 | . . . 4 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜒) | |
| 2 | rexanuz3.4 | . . . 4 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜓) | |
| 3 | 1, 2 | jca 511 | . . 3 ⊢ (𝜑 → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜒 ∧ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜓)) |
| 4 | rexanuz3.2 | . . . 4 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 5 | 4 | rexanuz2 15303 | . . 3 ⊢ (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓) ↔ (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜒 ∧ ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜓)) |
| 6 | 3, 5 | sylibr 234 | . 2 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) |
| 7 | rexanuz3.1 | . . 3 ⊢ Ⅎ𝑗𝜑 | |
| 8 | 4 | eleq2i 2829 | . . . . . . . . . 10 ⊢ (𝑗 ∈ 𝑍 ↔ 𝑗 ∈ (ℤ≥‘𝑀)) |
| 9 | 8 | biimpi 216 | . . . . . . . . 9 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ (ℤ≥‘𝑀)) |
| 10 | eluzelz 12789 | . . . . . . . . 9 ⊢ (𝑗 ∈ (ℤ≥‘𝑀) → 𝑗 ∈ ℤ) | |
| 11 | uzid 12794 | . . . . . . . . 9 ⊢ (𝑗 ∈ ℤ → 𝑗 ∈ (ℤ≥‘𝑗)) | |
| 12 | 9, 10, 11 | 3syl 18 | . . . . . . . 8 ⊢ (𝑗 ∈ 𝑍 → 𝑗 ∈ (ℤ≥‘𝑗)) |
| 13 | 12 | adantr 480 | . . . . . . 7 ⊢ ((𝑗 ∈ 𝑍 ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) → 𝑗 ∈ (ℤ≥‘𝑗)) |
| 14 | simpr 484 | . . . . . . 7 ⊢ ((𝑗 ∈ 𝑍 ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) → ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) | |
| 15 | rexanuz3.5 | . . . . . . . . 9 ⊢ (𝑘 = 𝑗 → (𝜒 ↔ 𝜃)) | |
| 16 | rexanuz3.6 | . . . . . . . . 9 ⊢ (𝑘 = 𝑗 → (𝜓 ↔ 𝜏)) | |
| 17 | 15, 16 | anbi12d 633 | . . . . . . . 8 ⊢ (𝑘 = 𝑗 → ((𝜒 ∧ 𝜓) ↔ (𝜃 ∧ 𝜏))) |
| 18 | 17 | rspcva 3563 | . . . . . . 7 ⊢ ((𝑗 ∈ (ℤ≥‘𝑗) ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) → (𝜃 ∧ 𝜏)) |
| 19 | 13, 14, 18 | syl2anc 585 | . . . . . 6 ⊢ ((𝑗 ∈ 𝑍 ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) → (𝜃 ∧ 𝜏)) |
| 20 | 19 | adantll 715 | . . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓)) → (𝜃 ∧ 𝜏)) |
| 21 | 20 | ex 412 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓) → (𝜃 ∧ 𝜏))) |
| 22 | 21 | ex 412 | . . 3 ⊢ (𝜑 → (𝑗 ∈ 𝑍 → (∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓) → (𝜃 ∧ 𝜏)))) |
| 23 | 7, 22 | reximdai 3240 | . 2 ⊢ (𝜑 → (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)(𝜒 ∧ 𝜓) → ∃𝑗 ∈ 𝑍 (𝜃 ∧ 𝜏))) |
| 24 | 6, 23 | mpd 15 | 1 ⊢ (𝜑 → ∃𝑗 ∈ 𝑍 (𝜃 ∧ 𝜏)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 Ⅎwnf 1785 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 ‘cfv 6492 ℤcz 12515 ℤ≥cuz 12779 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-pre-lttri 11103 ax-pre-lttrn 11104 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-po 5532 df-so 5533 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7363 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-neg 11371 df-z 12516 df-uz 12780 |
| This theorem is referenced by: smflimlem4 47220 |
| Copyright terms: Public domain | W3C validator |