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| Mirrors > Home > ILE Home > Th. List > rexralbidv | GIF version | ||
| Description: Formula-building rule for restricted quantifiers (deduction form). (Contributed by NM, 28-Jan-2006.) |
| Ref | Expression |
|---|---|
| 2ralbidv.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| rexralbidv | ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2ralbidv.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 2 | 1 | ralbidv 2530 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | rexbidv 2531 | 1 ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 ∀wral 2508 ∃wrex 2509 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-ral 2513 df-rex 2514 |
| This theorem is referenced by: caucvgpr 7880 caucvgprpr 7910 caucvgsrlemgt1 7993 caucvgsrlemoffres 7998 axcaucvglemres 8097 cvg1nlemres 11511 rexfiuz 11515 resqrexlemgt0 11546 resqrexlemoverl 11547 resqrexlemglsq 11548 resqrexlemsqa 11550 resqrexlemex 11551 cau3lem 11640 caubnd2 11643 climi 11813 2clim 11827 ennnfonelemim 13010 mplelbascoe 14671 lmcvg 14906 lmss 14935 txlm 14968 metcnpi 15204 metcnpi2 15205 elcncf 15262 cncfi 15267 limcimo 15354 cnplimclemr 15358 limccoap 15367 |
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