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| Mirrors > Home > MPE Home > Th. List > el2v | Structured version Visualization version GIF version | ||
| Description: If a proposition is implied by 𝑥 ∈ V and 𝑦 ∈ V (which is true, see vex 3454), then it is true. (Contributed by Peter Mazsa, 13-Oct-2018.) |
| Ref | Expression |
|---|---|
| el2v.1 | ⊢ ((𝑥 ∈ V ∧ 𝑦 ∈ V) → 𝜑) |
| Ref | Expression |
|---|---|
| el2v | ⊢ 𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3454 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | vex 3454 | . 2 ⊢ 𝑦 ∈ V | |
| 3 | el2v.1 | . 2 ⊢ ((𝑥 ∈ V ∧ 𝑦 ∈ V) → 𝜑) | |
| 4 | 1, 2, 3 | mp2an 705 | 1 ⊢ 𝜑 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2145 Vcvv 3450 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 |
| This theorem is used by: codir 6114 dfco2 6241 1st2val 8015 2nd2val 8016 fnmap 8833 enrefnn 9054 unfi 9166 wemappo 9522 wemapsolem 9523 fin23lem26 10328 seqval 14077 hash2exprb 14537 hashle2prv 14544 hash3tpexb 14560 mreexexlem4d 17736 pmtrrn2 19588 c0snmgmhm 20604 matunitlindflem2 22903 alexsubALTlem4 24277 elqaalem2 26553 seqsval 28554 upgrex 29550 cusgrsize 29915 erclwwlkref 30491 erclwwlksym 30492 erclwwlknref 30540 erclwwlknsym 30541 eclclwwlkn1 30546 onvfowev 35714 gonanegoal 35932 gonarlem 35974 gonar 35975 fmla0disjsuc 35978 fmlasucdisj 35979 mclsppslem 36163 fneer 36973 curunc 38357 findcard4 38464 vvdifopab 39014 inxprnres 39047 ineccnvmo 39106 alrmomorn 39107 dfsucmap3 39212 dmsucmap 39217 dfcoss2 39252 dfcoss3 39253 cosscnv 39255 cocossss 39275 cnvcosseq 39276 refressn 39282 antisymressn 39283 trressn 39284 rncossdmcoss 39294 symrelcoss3 39304 1cosscnvxrn 39314 cosscnvssid3 39315 cosscnvssid4 39316 coss0 39318 trcoss 39321 trcoss2 39323 erimeq2 39512 dfeldisj3 39560 dfeldisj4 39561 eldisjdmqsim 39566 dfantisymrel5 39614 dfpetparts2 39721 dfpeters2 39723 ismrc 43547 en2pr 44388 pr2cv 44389 permaxext 45829 permac8prim 45838 ovnsubaddlem1 47399 sprsymrelfvlem 48391 sprsymrelf1lem 48392 prprelb 48417 prprspr2 48419 reuprpr 48424 2exopprim 48426 reuopreuprim 48427 |
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