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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 5926 tfrlem5 6466 eroveu 6781 erovlem 6782 xpf1o 7013 genprndl 7719 genprndu 7720 ltpopr 7793 ltsopr 7794 cauappcvgprlemdisj 7849 caucvgprlemdisj 7872 caucvgprprlemdisj 7900 exbtwnzlemex 10481 rebtwn2z 10486 rexanre 11746 summodc 11909 prodmodclem2 12103 prodmodc 12104 dvds2lem 12329 odd2np1 12399 opoe 12421 omoe 12422 opeo 12423 omeo 12424 gcddiv 12555 divgcdcoprmex 12639 pcqmul 12841 pcadd 12878 mul4sq 12932 4sqlem12 12940 dvdsrtr 14080 unitgrp 14095 lss1d 14362 znidom 14636 tgcl 14753 restbasg 14857 txuni2 14945 txbas 14947 txcnp 14960 blin2 15121 tgqioo 15244 plyadd 15440 plymul 15441 mul2sq 15810 2sqlem5 15813 uhgr2edg 16019 |
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