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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 1577 | . 2 ⊢ Ⅎ𝑦𝜑 | |
| 2 | nfv 1577 | . 2 ⊢ Ⅎ𝑥𝜓 | |
| 3 | 1, 2 | reean 2703 | 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 2512 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 |
| This theorem is referenced by: 3reeanv 2705 fliftfun 5947 tfrlem5 6523 eroveu 6838 erovlem 6839 xpf1o 7073 genprndl 7784 genprndu 7785 ltpopr 7858 ltsopr 7859 cauappcvgprlemdisj 7914 caucvgprlemdisj 7937 caucvgprprlemdisj 7965 exbtwnzlemex 10555 rebtwn2z 10560 rexanre 11843 summodc 12007 prodmodclem2 12201 prodmodc 12202 dvds2lem 12427 odd2np1 12497 opoe 12519 omoe 12520 opeo 12521 omeo 12522 gcddiv 12653 divgcdcoprmex 12737 pcqmul 12939 pcadd 12976 mul4sq 13030 4sqlem12 13038 dvdsrtr 14179 unitgrp 14194 lss1d 14462 znidom 14736 tgcl 14858 restbasg 14962 txuni2 15050 txbas 15052 txcnp 15065 blin2 15226 tgqioo 15349 plyadd 15545 plymul 15546 mul2sq 15918 2sqlem5 15921 uhgr2edg 16130 |
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