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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 1574 | . 2 ⊢ Ⅎ𝑦𝜑 | |
| 2 | nfv 1574 | . 2 ⊢ Ⅎ𝑥𝜓 | |
| 3 | 1, 2 | reean 2700 | 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 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-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rex 2514 |
| This theorem is referenced by: 3reeanv 2702 fliftfun 5929 tfrlem5 6471 eroveu 6786 erovlem 6787 xpf1o 7018 genprndl 7724 genprndu 7725 ltpopr 7798 ltsopr 7799 cauappcvgprlemdisj 7854 caucvgprlemdisj 7877 caucvgprprlemdisj 7905 exbtwnzlemex 10486 rebtwn2z 10491 rexanre 11752 summodc 11915 prodmodclem2 12109 prodmodc 12110 dvds2lem 12335 odd2np1 12405 opoe 12427 omoe 12428 opeo 12429 omeo 12430 gcddiv 12561 divgcdcoprmex 12645 pcqmul 12847 pcadd 12884 mul4sq 12938 4sqlem12 12946 dvdsrtr 14086 unitgrp 14101 lss1d 14368 znidom 14642 tgcl 14759 restbasg 14863 txuni2 14951 txbas 14953 txcnp 14966 blin2 15127 tgqioo 15250 plyadd 15446 plymul 15447 mul2sq 15816 2sqlem5 15819 uhgr2edg 16025 |
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