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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 1955 (see also 19.42 2244). (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 3168 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
| 2 | ancom 460 | . . 3 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜓 ∧ 𝜑)) | |
| 3 | 2 | rexbii 3085 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ ∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑)) |
| 4 | ancom 460 | . 2 ⊢ ((𝜑 ∧ ∃𝑥 ∈ 𝐴 𝜓) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
| 5 | 1, 3, 4 | 3bitr4i 303 | 1 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ (𝜑 ∧ ∃𝑥 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∃wrex 3062 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-rex 3063 |
| This theorem is referenced by: ceqsrexbv 3612 ceqsrex2v 3614 2reuswap 3706 2reuswap2 3707 2reu5 3718 2rmoswap 3721 dfiun2g 4987 iunrab 5010 iunin2 5028 iundif2 5031 reusv2lem4 5350 iunopab 5517 cnvuni 5845 elidinxp 6013 xpdifid 6136 dfpo2 6264 elunirn 7209 f1oiso 7309 oprabrexex2 7934 oeeu 8543 trcl 9651 dfac5lem2 10048 axgroth4 10757 rexuz2 12826 4fvwrd4 13578 divalglem10 16343 divalgb 16345 lsmelval2 21054 tgcmp 23362 hauscmplem 23367 unisngl 23488 xkobval 23547 txtube 23601 txcmplem1 23602 txkgen 23613 xkococnlem 23620 mbfaddlem 25634 mbfsup 25638 elaa 26297 dchrisumlem3 27475 elold 27872 colperpexlem3 28822 midex 28827 iscgra1 28900 ax5seg 29029 edglnl 29234 usgr2pth0 29856 hhcmpl 31294 sumdmdii 32509 reuxfrdf 32583 unipreima 32739 fpwrelmapffslem 32828 elirng 33870 esumfsup 34254 reprdifc 34811 bnj168 34913 bnj1398 35216 cvmliftlem15 35520 ellines 36374 bj-elsngl 37243 bj-dfmpoa 37398 ptrecube 37900 cnambfre 37948 islshpat 39422 lfl1dim 39526 glbconxN 39783 3dim0 39862 2dim 39875 1dimN 39876 islpln5 39940 islvol5 39984 dalem20 40098 lhpex2leN 40418 mapdval4N 42037 rexrabdioph 43180 rmxdioph 43402 expdiophlem1 43407 imaiun1 44036 coiun1 44037 ismnuprim 44679 prmunb2 44696 fourierdlem48 46541 2reuimp0 47503 2reuimp 47504 wtgoldbnnsum4prm 48191 bgoldbnnsum3prm 48193 dfvopnbgr2 48242 stgredgiun 48347 islindeps2 48872 isldepslvec2 48874 sepnsepolem1 49310 |
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