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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 3458), 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 3458 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | vex 3458 | . 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 2147 Vcvv 3454 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-v 3456 |
| This theorem is used by: codir 6132 dfco2 6265 1st2val 8063 2nd2val 8064 fnmap 8891 enrefnn 9112 unfi 9224 wemappo 9580 wemapsolem 9581 fin23lem26 10442 seqval 14195 hash2exprb 14657 hashle2prv 14664 hash3tpexb 14680 mreexexlem4d 17871 pmtrrn2 19725 c0snmgmhm 20743 matunitlindflem2 23050 alexsubALTlem4 24424 elqaalem2 26700 seqsval 28731 upgrex 29727 cusgrsize 30092 erclwwlkref 30668 erclwwlksym 30669 erclwwlknref 30717 erclwwlknsym 30718 eclclwwlkn1 30723 onvfowev 36091 gonanegoal 36325 gonarlem 36367 gonar 36368 fmla0disjsuc 36371 fmlasucdisj 36372 mclsppslem 36556 fneer 37356 curunc 38793 findcard4 38900 vvdifopab 39463 inxprnres 39496 ineccnvmo 39555 alrmomorn 39556 dfsucmap3 39661 dmsucmap 39666 dfcoss2 39701 dfcoss3 39702 cosscnv 39704 cocossss 39724 cnvcosseq 39725 refressn 39731 antisymressn 39732 trressn 39733 rncossdmcoss 39743 symrelcoss3 39753 1cosscnvxrn 39763 cosscnvssid3 39764 cosscnvssid4 39765 coss0 39767 trcoss 39770 trcoss2 39772 erimeq2 39961 dfeldisj3 40009 dfeldisj4 40010 eldisjdmqsim 40015 dfantisymrel5 40063 dfpetparts2 40170 dfpeters2 40172 ismrc 43978 en2pr 44809 pr2cv 44810 permaxext 46259 permac8prim 46268 ovnsubaddlem1 47853 sprsymrelfvlem 48845 sprsymrelf1lem 48846 prprelb 48871 prprspr2 48873 reuprpr 48878 2exopprim 48880 reuopreuprim 48881 |
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