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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 3455), 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 3455 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | vex 3455 | . 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 3451 |
| 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 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-v 3453 |
| This theorem is used by: codir 6114 dfco2 6246 1st2val 8029 2nd2val 8030 fnmap 8853 enrefnn 9074 unfi 9186 wemappo 9543 wemapsolem 9544 fin23lem26 10403 seqval 14155 hash2exprb 14616 hashle2prv 14623 hash3tpexb 14639 mreexexlem4d 17821 pmtrrn2 19674 c0snmgmhm 20692 matunitlindflem2 22995 alexsubALTlem4 24369 elqaalem2 26643 seqsval 28674 upgrex 29670 cusgrsize 30035 erclwwlkref 30611 erclwwlksym 30612 erclwwlknref 30660 erclwwlknsym 30661 eclclwwlkn1 30666 onvfowev 35899 gonanegoal 36117 gonarlem 36159 gonar 36160 fmla0disjsuc 36163 fmlasucdisj 36164 mclsppslem 36348 fneer 37141 curunc 38525 findcard4 38632 vvdifopab 39197 inxprnres 39230 ineccnvmo 39289 alrmomorn 39290 dfsucmap3 39395 dmsucmap 39400 dfcoss2 39435 dfcoss3 39436 cosscnv 39438 cocossss 39458 cnvcosseq 39459 refressn 39465 antisymressn 39466 trressn 39467 rncossdmcoss 39477 symrelcoss3 39487 1cosscnvxrn 39497 cosscnvssid3 39498 cosscnvssid4 39499 coss0 39501 trcoss 39504 trcoss2 39506 erimeq2 39695 dfeldisj3 39743 dfeldisj4 39744 eldisjdmqsim 39749 dfantisymrel5 39797 dfpetparts2 39904 dfpeters2 39906 ismrc 43711 en2pr 44547 pr2cv 44548 permaxext 45994 permac8prim 46003 ovnsubaddlem1 47579 sprsymrelfvlem 48571 sprsymrelf1lem 48572 prprelb 48597 prprspr2 48599 reuprpr 48604 2exopprim 48606 reuopreuprim 48607 |
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