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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 5932 tfrlem5 6475 eroveu 6790 erovlem 6791 xpf1o 7025 genprndl 7731 genprndu 7732 ltpopr 7805 ltsopr 7806 cauappcvgprlemdisj 7861 caucvgprlemdisj 7884 caucvgprprlemdisj 7912 exbtwnzlemex 10499 rebtwn2z 10504 rexanre 11771 summodc 11934 prodmodclem2 12128 prodmodc 12129 dvds2lem 12354 odd2np1 12424 opoe 12446 omoe 12447 opeo 12448 omeo 12449 gcddiv 12580 divgcdcoprmex 12664 pcqmul 12866 pcadd 12903 mul4sq 12957 4sqlem12 12965 dvdsrtr 14105 unitgrp 14120 lss1d 14387 znidom 14661 tgcl 14778 restbasg 14882 txuni2 14970 txbas 14972 txcnp 14985 blin2 15146 tgqioo 15269 plyadd 15465 plymul 15466 mul2sq 15835 2sqlem5 15838 uhgr2edg 16045 |
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