![]() |
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 2230 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 1954 | . 2 ⊢ (∃𝑥(𝜓 ∧ 𝜑) ↔ (∃𝑥𝜓 ∧ 𝜑)) | |
2 | exancom 1865 | . 2 ⊢ (∃𝑥(𝜑 ∧ 𝜓) ↔ ∃𝑥(𝜓 ∧ 𝜑)) | |
3 | ancom 462 | . 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 205 ∧ wa 397 ∃wex 1782 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 |
This theorem depends on definitions: df-bi 206 df-an 398 df-ex 1783 |
This theorem is referenced by: exdistr 1959 19.42vv 1962 19.42vvv 1964 4exdistr 1966 2sb5 2272 eeeanv 2347 eu6lem 2568 rexcom4a 3290 cbvrexdva2OLD 3347 ceqsex2 3530 ceqsex2v 3531 reuind 3749 2reu5lem3 3753 sbccomlem 3864 bm1.3ii 5302 eqvinop 5487 dfid2 5576 dmopabss 5917 dmopab3 5918 dmres 6002 ssrnres 6175 mptpreima 6235 resco 6247 mptfnf 6683 brprcneu 6879 brprcneuALT 6880 fndmin 7044 fliftf 7309 dfoprab2 7464 dmoprab 7507 dmoprabss 7508 fnoprabg 7528 uniuni 7746 zfrep6 7938 opabex3d 7949 opabex3rd 7950 opabex3 7951 fsplit 8100 eroveu 8803 rexdif1enOLD 9156 ensymfib 9184 rankuni 9855 aceq1 10109 dfac3 10113 kmlem14 10155 kmlem15 10156 axdc2lem 10440 1idpr 11021 ltexprlem1 11028 ltexprlem4 11031 xpcogend 14918 shftdm 15015 joindm 18325 meetdm 18339 toprntopon 22419 ntreq0 22573 cnextf 23562 dmscut 27302 adjeu 31130 rexunirn 31720 fpwrelmapffslem 31945 mxidlnzrb 32584 tgoldbachgt 33664 bnj1019 33779 bnj1209 33796 bnj1033 33969 bnj1189 34009 satfdm 34349 dfiota3 34884 brimg 34898 funpartlem 34903 bj-eeanvw 35580 bj-snsetex 35833 bj-snglc 35839 bj-bm1.3ii 35934 bj-dfid2ALT 35935 bj-restuni 35967 bj-xpcossxp 36059 bj-imdirco 36060 itg2addnc 36531 sbccom2lem 36981 eldmres 37127 rnxrn 37257 coss1cnvres 37276 nnoeomeqom 42048 rp-isfinite6 42255 undmrnresiss 42341 elintima 42390 pm11.58 43135 pm11.71 43142 2sbc5g 43161 iotasbc2 43165 ax6e2nd 43305 ax6e2ndVD 43655 ax6e2ndALT 43677 stoweidlem60 44763 mofeu 47468 elpglem3 47712 |
Copyright terms: Public domain | W3C validator |