| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 19.42v | Structured version Visualization version GIF version | ||
| Description: Version of 19.42 2243 with a disjoint variable condition requiring fewer axioms. (Contributed by NM, 21-Jun-1993.) |
| Ref | Expression |
|---|---|
| 19.42v | ⊢ (∃𝑥(𝜑 ∧ 𝜓) ↔ (𝜑 ∧ ∃𝑥𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 19.41v 1950 | . 2 ⊢ (∃𝑥(𝜓 ∧ 𝜑) ↔ (∃𝑥𝜓 ∧ 𝜑)) | |
| 2 | exancom 1862 | . 2 ⊢ (∃𝑥(𝜑 ∧ 𝜓) ↔ ∃𝑥(𝜓 ∧ 𝜑)) | |
| 3 | ancom 460 | . 2 ⊢ ((𝜑 ∧ ∃𝑥𝜓) ↔ (∃𝑥𝜓 ∧ 𝜑)) | |
| 4 | 1, 2, 3 | 3bitr4i 303 | 1 ⊢ (∃𝑥(𝜑 ∧ 𝜓) ↔ (𝜑 ∧ ∃𝑥𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∃wex 1780 |
| 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 207 df-an 396 df-ex 1781 |
| This theorem is referenced by: exdistr 1955 19.42vv 1958 19.42vvv 1960 4exdistr 1962 2sb5 2284 eeeanv 2354 eu6lem 2573 r3ex 3175 rexcom4a 3266 ceqsex2 3493 ceqsex2v 3494 reuind 3711 2reu5lem3 3715 sbccomlemOLD 3820 bm1.3iiOLD 5247 eqvinop 5435 dfid2 5521 dmopabss 5867 dmopab3 5868 dmxp 5878 rnopabss 5904 rnopab3 5905 dmres 5971 ssrnres 6136 mptpreima 6196 resco 6208 mptfnf 6627 brprcneu 6824 brprcneuALT 6825 fndmin 6990 fliftf 7261 dfoprab2 7416 dmoprab 7461 dmoprabss 7462 fnoprabg 7481 uniuni 7707 zfrep6 7899 opabex3d 7909 opabex3rd 7910 opabex3 7911 fsplit 8059 eroveu 8749 ensymfib 9108 rankuni 9775 aceq1 10027 dfac3 10031 kmlem14 10074 kmlem15 10075 axdc2lem 10358 1idpr 10940 ltexprlem1 10947 ltexprlem4 10950 xpcogend 14897 shftdm 14994 joindm 18296 meetdm 18310 toprntopon 22869 ntreq0 23021 cnextf 24010 dmcuts 27787 adjeu 31964 rexunirn 32566 fpwrelmapffslem 32811 mxidlnzrb 33561 tgoldbachgt 34820 bnj1019 34935 bnj1209 34952 bnj1033 35125 bnj1189 35165 satfdm 35563 dfiota3 36115 brimg 36129 funpartlem 36136 bj-eeanvw 36914 bj-snsetex 37164 bj-snglc 37170 bj-bm1.3ii 37265 bj-dfid2ALT 37266 bj-restuni 37302 bj-xpcossxp 37394 bj-imdirco 37395 itg2addnc 37875 sbccom2lem 38325 eldmres 38472 rnxrn 38616 coss1cnvres 38690 nnoeomeqom 43564 rp-isfinite6 43769 undmrnresiss 43855 elintima 43904 pm11.58 44641 pm11.71 44648 2sbc5g 44667 iotasbc2 44671 ax6e2nd 44809 ax6e2ndVD 45158 ax6e2ndALT 45180 modelaxreplem3 45231 stoweidlem60 46314 coxp 49088 mofeu 49103 uobffth 49473 uobeqw 49474 elpglem3 49968 |
| Copyright terms: Public domain | W3C validator |