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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 2550 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
| 3 | 2 | rexbidv 2551 | 1 ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 105 ∀wral 2528 ∃wrex 2529 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-ral 2533 df-rex 2534 |
| This theorem is used by: caucvgpr 8050 caucvgprpr 8080 caucvgsrlemgt1 8163 caucvgsrlemoffres 8168 axcaucvglemres 8267 cvg1nlemres 11767 rexfiuz 11771 resqrexlemgt0 11802 resqrexlemoverl 11803 resqrexlemglsq 11804 resqrexlemsqa 11806 resqrexlemex 11807 cau3lem 11897 caubnd2 11900 climi 12072 2clim 12086 ennnfonelemim 13367 mplelbascoe 15174 lmcvg 15409 lmss 15438 txlm 15471 metcnpi 15707 metcnpi2 15708 elcncf 15765 cncfi 15770 limcimo 15857 cnplimclemr 15861 limccoap 15870 |
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