| 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 1982 (see also 19.42 2271). (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 3194 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑) ↔ (∃𝑥 ∈ 𝐴 𝜓 ∧ 𝜑)) | |
| 2 | ancom 465 | . . 3 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜓 ∧ 𝜑)) | |
| 3 | 2 | rexbii 3111 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ ∃𝑥 ∈ 𝐴 (𝜓 ∧ 𝜑)) |
| 4 | ancom 465 | . 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 400 ∃wrex 3088 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 |
| This proof depends on definitions: df-bi 210 df-an 401 df-ex 1809 df-rex 3089 |
| This theorem is used by: ceqsrexbv 3614 ceqsrex2v 3616 2reuswap 3708 2reuswap2 3709 2reu5 3720 2rmoswap 3723 dfiun2g 4993 iunrab 5016 iunin2 5034 iundif2 5037 reusv2lem4 5371 iunopab 5543 cnvuni 5875 elidinxp 6045 xpdifid 6164 xpdifcnvepel 6165 dfpo2 6297 elunirn 7249 f1oiso 7349 oprabrexex2 7973 oeeu 8587 trcl 9695 dfac5lem2 10115 axgroth4 10823 rexuz2 12929 4fvwrd4 13683 divalglem10 16466 divalgb 16468 lsmelval2 21217 tgcmp 23569 hauscmplem 23574 unisngl 23695 xkobval 23754 txtube 23808 txcmplem1 23809 txkgen 23820 xkococnlem 23827 mbfaddlem 25830 mbfsup 25834 elaa 26488 dchrisumlem3 27666 elold 28063 colperpexlem3 29024 midex 29029 iscgra1 29132 ax5seg 29299 edglnl 29504 usgr2pth0 30125 hhcmpl 31563 sumdmdii 32778 reuxfrdf 32848 unipreima 32999 fpwrelmapffslem 33088 elirng 34085 esumfsup 34469 reprdifc 35023 bnj168 35128 bnj1398 35431 cvmliftlem15 35798 ellines 36652 bj-elsngl 37632 bj-dfmpoa 37788 ptrecube 38299 cnambfre 38347 islshpat 39819 lfl1dim 39923 glbconxN 40180 3dim0 40259 2dim 40272 1dimN 40273 islpln5 40337 islvol5 40381 dalem20 40495 lhpex2leN 40815 mapdval4N 42434 rexrabdioph 43549 rmxdioph 43771 expdiophlem1 43776 imaiun1 44405 coiun1 44406 ismnuprim 45032 prmunb2 45049 fourierdlem48 46896 2reuimp0 47879 2reuimp 47880 wtgoldbnnsum4prm 48595 bgoldbnnsum3prm 48597 dfvopnbgr2 48646 stgredgiun 48751 islindeps2 49291 isldepslvec2 49293 sepnsepolem1 49728 |
| Copyright terms: Public domain | W3C validator |