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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 2144 Vcvv 3450 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 |
| This theorem is used by: codir 6116 dfco2 6249 1st2val 8033 2nd2val 8034 fnmap 8861 enrefnn 9082 unfi 9194 wemappo 9550 wemapsolem 9551 fin23lem26 10410 seqval 14162 hash2exprb 14623 hashle2prv 14630 hash3tpexb 14646 mreexexlem4d 17830 pmtrrn2 19683 c0snmgmhm 20701 matunitlindflem2 23004 alexsubALTlem4 24378 elqaalem2 26652 seqsval 28683 upgrex 29679 cusgrsize 30044 erclwwlkref 30620 erclwwlksym 30621 erclwwlknref 30669 erclwwlknsym 30670 eclclwwlkn1 30675 onvfowev 36001 gonanegoal 36235 gonarlem 36277 gonar 36278 fmla0disjsuc 36281 fmlasucdisj 36282 mclsppslem 36466 fneer 37265 curunc 38662 findcard4 38769 vvdifopab 39334 inxprnres 39367 ineccnvmo 39426 alrmomorn 39427 dfsucmap3 39532 dmsucmap 39537 dfcoss2 39572 dfcoss3 39573 cosscnv 39575 cocossss 39595 cnvcosseq 39596 refressn 39602 antisymressn 39603 trressn 39604 rncossdmcoss 39614 symrelcoss3 39624 1cosscnvxrn 39634 cosscnvssid3 39635 cosscnvssid4 39636 coss0 39638 trcoss 39641 trcoss2 39643 erimeq2 39832 dfeldisj3 39880 dfeldisj4 39881 eldisjdmqsim 39886 dfantisymrel5 39934 dfpetparts2 40041 dfpeters2 40043 ismrc 43849 en2pr 44685 pr2cv 44686 permaxext 46131 permac8prim 46140 ovnsubaddlem1 47716 sprsymrelfvlem 48708 sprsymrelf1lem 48709 prprelb 48734 prprspr2 48736 reuprpr 48741 2exopprim 48743 reuopreuprim 48744 |
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