| 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 2354 eu6lem 2573 r3ex 3176 rexcom4a 3267 ceqsex2 3481 ceqsex2v 3482 reuind 3699 2reu5lem3 3703 sbccomlemOLD 3808 bm1.3iiOLD 5237 eqvinop 5440 copsexgw 5443 dfid2 5528 dmopabss 5873 dmopab3 5874 dmxp 5884 rnopabss 5910 rnopab3 5911 dmres 5977 ssrnres 6142 mptpreima 6202 resco 6214 mptfnf 6633 brprcneu 6830 brprcneuALT 6831 fndmin 6997 fliftf 7270 dfoprab2 7425 dmoprab 7470 dmoprabss 7471 fnoprabg 7490 uniuni 7716 zfrep6OLD 7908 opabex3d 7918 opabex3rd 7919 opabex3 7920 fsplit 8067 eroveu 8759 ensymfib 9118 rankuni 9787 aceq1 10039 dfac3 10043 kmlem14 10086 kmlem15 10087 axdc2lem 10370 1idpr 10952 ltexprlem1 10959 ltexprlem4 10962 xpcogend 14936 shftdm 15033 joindm 18339 meetdm 18353 toprntopon 22890 ntreq0 23042 cnextf 24031 dmcuts 27783 adjeu 31960 rexunirn 32561 fpwrelmapffslem 32805 mxidlnzrb 33540 tgoldbachgt 34807 bnj1019 34922 bnj1209 34938 bnj1033 35111 bnj1189 35151 satfdm 35551 dfiota3 36103 brimg 36117 funpartlem 36124 bj-eeanvw 37012 bj-snsetex 37270 bj-snglc 37276 bj-bm1.3ii 37371 bj-dfid2ALT 37372 bj-axreprepsep 37382 bj-restuni 37409 bj-xpcossxp 37503 bj-imdirco 37504 itg2addnc 37995 sbccom2lem 38445 eldmres 38598 rnxrn 38742 coss1cnvres 38828 nnoeomeqom 43740 rp-isfinite6 43945 undmrnresiss 44031 elintima 44080 pm11.58 44817 pm11.71 44824 2sbc5g 44843 iotasbc2 44847 ax6e2nd 44985 ax6e2ndVD 45334 ax6e2ndALT 45356 modelaxreplem3 45407 stoweidlem60 46488 coxp 49308 mofeu 49323 uobffth 49693 uobeqw 49694 elpglem3 50188 |
| Copyright terms: Public domain | W3C validator |