| 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 2244 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 1951 | . 2 ⊢ (∃𝑥(𝜓 ∧ 𝜑) ↔ (∃𝑥𝜓 ∧ 𝜑)) | |
| 2 | exancom 1863 | . 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 1781 |
| 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 |
| This theorem is referenced by: exdistr 1956 19.42vv 1959 19.42vvv 1961 4exdistr 1963 2sb5 2285 eeeanv 2355 eu6lem 2574 r3ex 3177 rexcom4a 3268 ceqsex2 3495 ceqsex2v 3496 reuind 3713 2reu5lem3 3717 sbccomlemOLD 3822 bm1.3iiOLD 5249 eqvinop 5443 dfid2 5529 dmopabss 5875 dmopab3 5876 dmxp 5886 rnopabss 5912 rnopab3 5913 dmres 5979 ssrnres 6144 mptpreima 6204 resco 6216 mptfnf 6635 brprcneu 6832 brprcneuALT 6833 fndmin 6999 fliftf 7271 dfoprab2 7426 dmoprab 7471 dmoprabss 7472 fnoprabg 7491 uniuni 7717 zfrep6 7909 opabex3d 7919 opabex3rd 7920 opabex3 7921 fsplit 8069 eroveu 8761 ensymfib 9120 rankuni 9787 aceq1 10039 dfac3 10043 kmlem14 10086 kmlem15 10087 axdc2lem 10370 1idpr 10952 ltexprlem1 10959 ltexprlem4 10962 xpcogend 14909 shftdm 15006 joindm 18308 meetdm 18322 toprntopon 22881 ntreq0 23033 cnextf 24022 dmcuts 27799 adjeu 31977 rexunirn 32578 fpwrelmapffslem 32822 mxidlnzrb 33573 tgoldbachgt 34841 bnj1019 34956 bnj1209 34972 bnj1033 35145 bnj1189 35185 satfdm 35585 dfiota3 36137 brimg 36151 funpartlem 36158 bj-eeanvw 36958 bj-snsetex 37211 bj-snglc 37217 bj-bm1.3ii 37312 bj-dfid2ALT 37313 bj-axreprepsep 37323 bj-restuni 37350 bj-xpcossxp 37444 bj-imdirco 37445 itg2addnc 37925 sbccom2lem 38375 eldmres 38528 rnxrn 38672 coss1cnvres 38758 nnoeomeqom 43669 rp-isfinite6 43874 undmrnresiss 43960 elintima 44009 pm11.58 44746 pm11.71 44753 2sbc5g 44772 iotasbc2 44776 ax6e2nd 44914 ax6e2ndVD 45263 ax6e2ndALT 45285 modelaxreplem3 45336 stoweidlem60 46418 coxp 49192 mofeu 49207 uobffth 49577 uobeqw 49578 elpglem3 50072 |
| Copyright terms: Public domain | W3C validator |