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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 2497 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | rexbidv 2498 | 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 2475 ∃wrex 2476 |
| 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 1461 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-4 1524 ax-17 1540 ax-ial 1548 |
| This theorem depends on definitions: df-bi 117 df-nf 1475 df-ral 2480 df-rex 2481 |
| This theorem is referenced by: caucvgpr 7751 caucvgprpr 7781 caucvgsrlemgt1 7864 caucvgsrlemoffres 7869 axcaucvglemres 7968 cvg1nlemres 11152 rexfiuz 11156 resqrexlemgt0 11187 resqrexlemoverl 11188 resqrexlemglsq 11189 resqrexlemsqa 11191 resqrexlemex 11192 cau3lem 11281 caubnd2 11284 climi 11454 2clim 11468 ennnfonelemim 12651 lmcvg 14463 lmss 14492 txlm 14525 metcnpi 14761 metcnpi2 14762 elcncf 14819 cncfi 14824 limcimo 14911 cnplimclemr 14915 limccoap 14924 |
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