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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 1962 (see also 19.42 2236). (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 3250 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
2 | ancom 464 | . . 3 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜓 ∧ 𝜑)) | |
3 | 2 | rexbii 3160 | . 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 306 | 1 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ (𝜑 ∧ ∃𝑥 ∈ 𝐴 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 209 ∧ wa 399 ∃wrex 3052 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1788 df-rex 3057 |
This theorem is referenced by: rexcom 3258 ceqsrexbv 3554 ceqsrex2v 3555 2reuswap 3648 2reuswap2 3649 2reu5 3660 2rmoswap 3663 iunrab 4947 iunin2 4965 iundif2 4968 reusv2lem4 5279 iunopab 5425 cnvuni 5740 elidinxp 5896 xpdifid 6011 elunirn 7042 f1oiso 7138 oprabrexex2 7729 oeeu 8309 trcl 9322 dfac5lem2 9703 axgroth4 10411 rexuz2 12460 4fvwrd4 13197 cshwsexa 14354 divalglem10 15926 divalgb 15928 lsmelval2 20076 tgcmp 22252 hauscmplem 22257 unisngl 22378 xkobval 22437 txtube 22491 txcmplem1 22492 txkgen 22503 xkococnlem 22510 mbfaddlem 24511 mbfsup 24515 elaa 25163 dchrisumlem3 26326 colperpexlem3 26777 midex 26782 iscgra1 26855 ax5seg 26983 edglnl 27188 usgr2pth0 27806 hhcmpl 29235 sumdmdii 30450 reuxfrdf 30512 unipreima 30654 fpwrelmapffslem 30741 esumfsup 31704 reprdifc 32273 bnj168 32375 bnj1398 32681 cvmliftlem15 32927 dfpo2 33392 elold 33739 ellines 34140 bj-elsngl 34844 bj-dfmpoa 34973 ptrecube 35463 cnambfre 35511 islshpat 36717 lfl1dim 36821 glbconxN 37078 3dim0 37157 2dim 37170 1dimN 37171 islpln5 37235 islvol5 37279 dalem20 37393 lhpex2leN 37713 mapdval4N 39332 rexrabdioph 40260 rmxdioph 40482 expdiophlem1 40487 imaiun1 40877 coiun1 40878 ismnuprim 41526 prmunb2 41543 fourierdlem48 43313 2reuimp0 44221 2reuimp 44222 wtgoldbnnsum4prm 44870 bgoldbnnsum3prm 44872 islindeps2 45440 isldepslvec2 45442 sepnsepolem1 45831 |
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