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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 5348 iunopab 5515 cnvuni 5843 elidinxp 6011 xpdifid 6134 dfpo2 6262 elunirn 7207 f1oiso 7307 oprabrexex2 7932 oeeu 8541 trcl 9649 dfac5lem2 10046 axgroth4 10755 rexuz2 12824 4fvwrd4 13576 divalglem10 16341 divalgb 16343 lsmelval2 21052 tgcmp 23360 hauscmplem 23365 unisngl 23486 xkobval 23545 txtube 23599 txcmplem1 23600 txkgen 23611 xkococnlem 23618 mbfaddlem 25632 mbfsup 25636 elaa 26295 dchrisumlem3 27473 elold 27870 colperpexlem3 28820 midex 28825 iscgra1 28898 ax5seg 29027 edglnl 29232 usgr2pth0 29854 hhcmpl 31292 sumdmdii 32507 reuxfrdf 32581 unipreima 32737 fpwrelmapffslem 32826 elirng 33868 esumfsup 34252 reprdifc 34809 bnj168 34911 bnj1398 35214 cvmliftlem15 35518 ellines 36372 bj-elsngl 37220 bj-dfmpoa 37375 ptrecube 37875 cnambfre 37923 islshpat 39397 lfl1dim 39501 glbconxN 39758 3dim0 39837 2dim 39850 1dimN 39851 islpln5 39915 islvol5 39959 dalem20 40073 lhpex2leN 40393 mapdval4N 42012 rexrabdioph 43155 rmxdioph 43377 expdiophlem1 43382 imaiun1 44011 coiun1 44012 ismnuprim 44654 prmunb2 44671 fourierdlem48 46516 2reuimp0 47478 2reuimp 47479 wtgoldbnnsum4prm 48166 bgoldbnnsum3prm 48168 dfvopnbgr2 48217 stgredgiun 48322 islindeps2 48847 isldepslvec2 48849 sepnsepolem1 49285 |
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