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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 2712 | 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 2521 |
| 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 2214 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-cleq 2225 df-clel 2228 df-nfc 2373 df-rex 2526 |
| This theorem is referenced by: 3reeanv 2714 fliftfun 5969 tfrlem5 6545 eroveu 6860 erovlem 6861 xpf1o 7097 genprndl 7836 genprndu 7837 ltpopr 7910 ltsopr 7911 cauappcvgprlemdisj 7966 caucvgprlemdisj 7989 caucvgprprlemdisj 8017 exbtwnzlemex 10609 rebtwn2z 10614 rexanre 11905 summodc 12069 prodmodclem2 12263 prodmodc 12264 dvds2lem 12489 odd2np1 12559 opoe 12581 omoe 12582 opeo 12583 omeo 12584 gcddiv 12715 divgcdcoprmex 12799 pcqmul 13001 pcadd 13038 mul4sq 13092 4sqlem12 13100 dvdsrtr 14246 unitgrp 14261 lss1d 14531 znidom 14805 tgcl 14929 restbasg 15033 txuni2 15121 txbas 15123 txcnp 15136 blin2 15297 tgqioo 15420 plyadd 15616 plymul 15617 mul2sq 15989 2sqlem5 15992 uhgr2edg 16201 |
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