| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > r19.42v | Structured version Visualization version GIF version | ||
| Description: Restricted quantifier version of 19.42v 1987 (see also 19.42 2275). (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 3196 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
| 2 | ancom 466 | . . 3 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜓 ∧ 𝜑)) | |
| 3 | 2 | rexbii 3113 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ ∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑)) |
| 4 | ancom 466 | . 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 |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 ∃wrex 3090 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-rex 3091 |
| This theorem is used by: ceqsrexbv 3613 ceqsrex2v 3615 2reuswap 3707 2reuswap2 3708 2reu5 3719 2rmoswap 3722 dfiun2g 4991 iunrab 5014 iunin2 5032 iundif2 5035 reusv2lem4 5367 iunopab 5538 cnvuni 5873 elidinxp 6042 xpdifid 6165 xpdifcnvepel 6166 dfpo2 6306 elunirn 7265 f1oiso 7369 oprabrexex2 8000 oeeu 8626 trcl 9742 dfac5lem2 10216 axgroth4 10930 rexuz2 13039 4fvwrd4 13795 divalglem10 16587 divalgb 16589 lsmelval2 21375 tgcmp 23734 hauscmplem 23739 unisngl 23861 xkobval 23920 txtube 23974 txcmplem1 23975 txkgen 23986 xkococnlem 23993 mbfaddlem 25996 mbfsup 26000 elaa 26654 dchrisumlem3 27833 elold 28260 colperpexlem3 29223 midex 29228 iscgra1 29332 ax5seg 29531 edglnl 29736 usgr2pth0 30366 hhcmpl 31817 sumdmdii 33032 reuxfrdf 33144 unipreima 33294 fpwrelmapffslem 33380 elirng 34374 esumfsup 34758 reprdifc 35312 bnj168 35417 bnj1398 35720 cvmliftlem15 36187 ellines 37047 bj-elsngl 38011 bj-elinxp 38090 bj-dfmpoa 38182 ptrecube 38681 cnambfre 38729 islshpat 40217 lfl1dim 40321 glbconxN 40578 3dim0 40657 2dim 40670 1dimN 40671 islpln5 40735 islvol5 40779 dalem20 40893 lhpex2leN 41213 mapdval4N 42832 rexrabdioph 43944 rmxdioph 44166 expdiophlem1 44171 imaiun1 44794 coiun1 44795 ismnuprim 45421 prmunb2 45438 fourierdlem48 47306 2reuimp0 48327 2reuimp 48328 wtgoldbnnsum4prm 49042 bgoldbnnsum3prm 49044 dfvopnbgr2 49093 stgredgiun 49198 islindeps2 49737 isldepslvec2 49739 sepnsepolem1 50178 |
| Copyright terms: Public domain | W3C validator |