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| Mirrors > Home > ILE Home > Th. List > reeanv | GIF version | ||
| Description: Rearrange existential quantifiers. (Contributed by NM, 9-May-1999.) |
| Ref | Expression |
|---|---|
| reeanv | ⊢ (∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 (𝜑 ∧ 𝜓) ↔ (∃𝑥 ∈ 𝐴 𝜑 ∧ ∃𝑦 ∈ 𝐵 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfv 1576 | . 2 ⊢ Ⅎ𝑦𝜑 | |
| 2 | nfv 1576 | . 2 ⊢ Ⅎ𝑥𝜓 | |
| 3 | 1, 2 | reean 2702 | 1 ⊢ (∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 (𝜑 ∧ 𝜓) ↔ (∃𝑥 ∈ 𝐴 𝜑 ∧ ∃𝑦 ∈ 𝐵 𝜓)) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 ↔ wb 105 ∃wrex 2511 |
| 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-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-sb 1811 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 |
| This theorem is referenced by: 3reeanv 2704 fliftfun 5936 tfrlem5 6479 eroveu 6794 erovlem 6795 xpf1o 7029 genprndl 7740 genprndu 7741 ltpopr 7814 ltsopr 7815 cauappcvgprlemdisj 7870 caucvgprlemdisj 7893 caucvgprprlemdisj 7921 exbtwnzlemex 10508 rebtwn2z 10513 rexanre 11780 summodc 11943 prodmodclem2 12137 prodmodc 12138 dvds2lem 12363 odd2np1 12433 opoe 12455 omoe 12456 opeo 12457 omeo 12458 gcddiv 12589 divgcdcoprmex 12673 pcqmul 12875 pcadd 12912 mul4sq 12966 4sqlem12 12974 dvdsrtr 14114 unitgrp 14129 lss1d 14396 znidom 14670 tgcl 14787 restbasg 14891 txuni2 14979 txbas 14981 txcnp 14994 blin2 15155 tgqioo 15278 plyadd 15474 plymul 15475 mul2sq 15844 2sqlem5 15847 uhgr2edg 16056 |
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