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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 1954 (see also 19.42 2238). (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 3347 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
2 | ancom 463 | . . 3 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜓 ∧ 𝜑)) | |
3 | 2 | rexbii 3247 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ ∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑)) |
4 | ancom 463 | . 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 398 ∃wrex 3139 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1781 df-rex 3144 |
This theorem is referenced by: rexcom 3355 ceqsrexbv 3642 ceqsrex2v 3643 2reuswap 3728 2reuswap2 3729 2reu5 3740 2rmoswap 3743 iunrab 4962 iunin2 4979 iundif2 4982 reusv2lem4 5288 iunopab 5432 cnvuni 5743 elidinxp 5897 xpdifid 6011 elunirn 6996 f1oiso 7090 oprabrexex2 7665 oeeu 8215 trcl 9156 dfac5lem2 9536 axgroth4 10240 rexuz2 12286 4fvwrd4 13017 cshwsexa 14171 divalglem10 15736 divalgb 15738 lsmelval2 19840 tgcmp 21992 hauscmplem 21997 unisngl 22118 xkobval 22177 txtube 22231 txcmplem1 22232 txkgen 22243 xkococnlem 22250 mbfaddlem 24244 mbfsup 24248 elaa 24891 dchrisumlem3 26053 colperpexlem3 26504 midex 26509 iscgra1 26582 ax5seg 26710 edglnl 26914 usgr2pth0 27532 hhcmpl 28961 sumdmdii 30176 reuxfrdf 30239 unipreima 30377 fpwrelmapffslem 30454 esumfsup 31336 reprdifc 31905 bnj168 32007 bnj1398 32313 cvmliftlem15 32552 dfpo2 32998 ellines 33620 bj-elsngl 34296 bj-dfmpoa 34426 ptrecube 34926 cnambfre 34974 islshpat 36185 lfl1dim 36289 glbconxN 36546 3dim0 36625 2dim 36638 1dimN 36639 islpln5 36703 islvol5 36747 dalem20 36861 lhpex2leN 37181 mapdval4N 38800 rexrabdioph 39483 rmxdioph 39705 expdiophlem1 39710 imaiun1 40086 coiun1 40087 ismnuprim 40720 prmunb2 40733 fourierdlem48 42529 2reuimp0 43403 2reuimp 43404 wtgoldbnnsum4prm 44052 bgoldbnnsum3prm 44054 islindeps2 44623 isldepslvec2 44625 |
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