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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 5937 tfrlem5 6480 eroveu 6795 erovlem 6796 xpf1o 7030 genprndl 7741 genprndu 7742 ltpopr 7815 ltsopr 7816 cauappcvgprlemdisj 7871 caucvgprlemdisj 7894 caucvgprprlemdisj 7922 exbtwnzlemex 10510 rebtwn2z 10515 rexanre 11798 summodc 11962 prodmodclem2 12156 prodmodc 12157 dvds2lem 12382 odd2np1 12452 opoe 12474 omoe 12475 opeo 12476 omeo 12477 gcddiv 12608 divgcdcoprmex 12692 pcqmul 12894 pcadd 12931 mul4sq 12985 4sqlem12 12993 dvdsrtr 14134 unitgrp 14149 lss1d 14416 znidom 14690 tgcl 14807 restbasg 14911 txuni2 14999 txbas 15001 txcnp 15014 blin2 15175 tgqioo 15298 plyadd 15494 plymul 15495 mul2sq 15864 2sqlem5 15867 uhgr2edg 16076 |
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