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Mirrors > Home > MPE Home > Th. List > r19.2uz | Structured version Visualization version GIF version |
Description: A version of r19.2z 4398 for upper integer quantifiers. (Contributed by Mario Carneiro, 15-Feb-2014.) |
Ref | Expression |
---|---|
rexuz3.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
Ref | Expression |
---|---|
r19.2uz | ⊢ (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜑 → ∃𝑘 ∈ 𝑍 𝜑) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzelz 12241 | . . . . . 6 ⊢ (𝑗 ∈ (ℤ≥‘𝑀) → 𝑗 ∈ ℤ) | |
2 | uzid 12246 | . . . . . 6 ⊢ (𝑗 ∈ ℤ → 𝑗 ∈ (ℤ≥‘𝑗)) | |
3 | ne0i 4250 | . . . . . 6 ⊢ (𝑗 ∈ (ℤ≥‘𝑗) → (ℤ≥‘𝑗) ≠ ∅) | |
4 | 1, 2, 3 | 3syl 18 | . . . . 5 ⊢ (𝑗 ∈ (ℤ≥‘𝑀) → (ℤ≥‘𝑗) ≠ ∅) |
5 | rexuz3.1 | . . . . 5 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
6 | 4, 5 | eleq2s 2908 | . . . 4 ⊢ (𝑗 ∈ 𝑍 → (ℤ≥‘𝑗) ≠ ∅) |
7 | r19.2z 4398 | . . . 4 ⊢ (((ℤ≥‘𝑗) ≠ ∅ ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)𝜑) → ∃𝑘 ∈ (ℤ≥‘𝑗)𝜑) | |
8 | 6, 7 | sylan 583 | . . 3 ⊢ ((𝑗 ∈ 𝑍 ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)𝜑) → ∃𝑘 ∈ (ℤ≥‘𝑗)𝜑) |
9 | 5 | uztrn2 12250 | . . . . . . 7 ⊢ ((𝑗 ∈ 𝑍 ∧ 𝑘 ∈ (ℤ≥‘𝑗)) → 𝑘 ∈ 𝑍) |
10 | 9 | ex 416 | . . . . . 6 ⊢ (𝑗 ∈ 𝑍 → (𝑘 ∈ (ℤ≥‘𝑗) → 𝑘 ∈ 𝑍)) |
11 | 10 | anim1d 613 | . . . . 5 ⊢ (𝑗 ∈ 𝑍 → ((𝑘 ∈ (ℤ≥‘𝑗) ∧ 𝜑) → (𝑘 ∈ 𝑍 ∧ 𝜑))) |
12 | 11 | reximdv2 3230 | . . . 4 ⊢ (𝑗 ∈ 𝑍 → (∃𝑘 ∈ (ℤ≥‘𝑗)𝜑 → ∃𝑘 ∈ 𝑍 𝜑)) |
13 | 12 | imp 410 | . . 3 ⊢ ((𝑗 ∈ 𝑍 ∧ ∃𝑘 ∈ (ℤ≥‘𝑗)𝜑) → ∃𝑘 ∈ 𝑍 𝜑) |
14 | 8, 13 | syldan 594 | . 2 ⊢ ((𝑗 ∈ 𝑍 ∧ ∀𝑘 ∈ (ℤ≥‘𝑗)𝜑) → ∃𝑘 ∈ 𝑍 𝜑) |
15 | 14 | rexlimiva 3240 | 1 ⊢ (∃𝑗 ∈ 𝑍 ∀𝑘 ∈ (ℤ≥‘𝑗)𝜑 → ∃𝑘 ∈ 𝑍 𝜑) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∈ wcel 2111 ≠ wne 2987 ∀wral 3106 ∃wrex 3107 ∅c0 4243 ‘cfv 6324 ℤcz 11969 ℤ≥cuz 12231 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-pre-lttri 10600 ax-pre-lttrn 10601 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-ov 7138 df-er 8272 df-en 8493 df-dom 8494 df-sdom 8495 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-neg 10862 df-z 11970 df-uz 12232 |
This theorem is referenced by: lmcls 21907 1stccnp 22067 iscmet3lem1 23895 iscmet3lem2 23896 uniioombllem6 24192 ulmcau 24990 ulmbdd 24993 ulmcn 24994 ulmdvlem3 24997 iblulm 25002 |
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