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| Mirrors > Home > MPE Home > Th. List > r19.42v | Structured version Visualization version GIF version | ||
| Description: Restricted quantifier version of 19.42v 1974 (see also 19.42 2272). (Contributed by NM, 27-May-1998.) |
| Ref | Expression |
|---|---|
| r19.42v | ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ (𝜑 ∧ ∃𝑥 ∈ 𝐴 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | r19.41v 3193 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
| 2 | ancom 464 | . . 3 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜓 ∧ 𝜑)) | |
| 3 | 2 | rexbii 3110 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ ∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑)) |
| 4 | ancom 464 | . 2 ⊢ ((𝜑 ∧ ∃𝑥 ∈ 𝐴 𝜓) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
| 5 | 1, 3, 4 | 3bitr4i 305 | 1 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ (𝜑 ∧ ∃𝑥 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ wa 399 ∃wrex 3087 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-ex 1801 df-rex 3088 |
| This theorem is referenced by: ceqsrexbv 3616 ceqsrex2v 3618 2reuswap 3710 2reuswap2 3711 2reu5 3722 2rmoswap 3725 dfiun2g 4988 iunrab 5011 iunin2 5029 iundif2 5032 reusv2lem4 5359 iunopab 5531 cnvuni 5863 elidinxp 6034 xpdifid 6154 xpdifcnvepel 6155 dfpo2 6284 elunirn 7236 f1oiso 7336 oprabrexex2 7960 oeeu 8574 trcl 9684 dfac5lem2 10081 axgroth4 10791 rexuz2 12901 4fvwrd4 13654 divalglem10 16437 divalgb 16439 lsmelval2 21153 tgcmp 23462 hauscmplem 23467 unisngl 23588 xkobval 23647 txtube 23701 txcmplem1 23702 txkgen 23713 xkococnlem 23720 mbfaddlem 25723 mbfsup 25727 elaa 26381 dchrisumlem3 27556 elold 27953 colperpexlem3 28906 midex 28911 iscgra1 29005 ax5seg 29140 edglnl 29345 usgr2pth0 29966 hhcmpl 31404 sumdmdii 32619 reuxfrdf 32691 unipreima 32846 fpwrelmapffslem 32935 elirng 33984 esumfsup 34368 reprdifc 34922 bnj168 35027 bnj1398 35330 cvmliftlem15 35649 ellines 36503 bj-elsngl 37454 bj-dfmpoa 37609 ptrecube 38120 cnambfre 38168 islshpat 39642 lfl1dim 39746 glbconxN 40003 3dim0 40082 2dim 40095 1dimN 40096 islpln5 40160 islvol5 40204 dalem20 40318 lhpex2leN 40638 mapdval4N 42257 rexrabdioph 43372 rmxdioph 43594 expdiophlem1 43599 imaiun1 44228 coiun1 44229 ismnuprim 44871 prmunb2 44888 fourierdlem48 46729 2reuimp0 47709 2reuimp 47710 wtgoldbnnsum4prm 48425 bgoldbnnsum3prm 48427 dfvopnbgr2 48476 stgredgiun 48581 islindeps2 49106 isldepslvec2 49108 sepnsepolem1 49544 |
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