| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 1581 | . 2 ⊢ Ⅎ𝑦𝜑 | |
| 2 | nfv 1581 | . 2 ⊢ Ⅎ𝑥𝜓 | |
| 3 | 1, 2 | reean 2720 | 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 2529 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 |
| This theorem is referenced by: 3reeanv 2722 fliftfun 5992 tfrlem5 6575 eroveu 6890 erovlem 6891 xpf1o 7134 genprndl 7878 genprndu 7879 ltpopr 7952 ltsopr 7953 cauappcvgprlemdisj 8008 caucvgprlemdisj 8031 caucvgprprlemdisj 8059 exbtwnzlemex 10662 rebtwn2z 10667 rexanre 11964 summodc 12128 prodmodclem2 12322 prodmodc 12323 dvds2lem 12548 odd2np1 12618 opoe 12640 omoe 12641 opeo 12642 omeo 12643 gcddiv 12774 divgcdcoprmex 12858 pcqmul 13060 pcadd 13097 mul4sq 13151 4sqlem12 13159 dvdsrtr 14381 unitgrp 14396 lss1d 14692 znidom 14964 tgcl 15088 restbasg 15192 txuni2 15280 txbas 15282 txcnp 15295 blin2 15456 tgqioo 15579 plyadd 15775 plymul 15776 mul2sq 16149 2sqlem5 16152 uhgr2edg 16361 |
| Copyright terms: Public domain | W3C validator |