| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > elfvexd | Structured version Visualization version GIF version | ||
| Description: If a function value has a member, then its argument is a set. Deduction form of elfvex 6940. (An artifact of our function value definition.) (Contributed by David Moews, 1-May-2017.) |
| Ref | Expression |
|---|---|
| elfvexd.1 | ⊢ (𝜑 → 𝐴 ∈ (𝐵‘𝐶)) |
| Ref | Expression |
|---|---|
| elfvexd | ⊢ (𝜑 → 𝐶 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elfvexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ (𝐵‘𝐶)) | |
| 2 | elfvex 6940 | . 2 ⊢ (𝐴 ∈ (𝐵‘𝐶) → 𝐶 ∈ V) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → 𝐶 ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 Vcvv 3454 ‘cfv 6555 |
| 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 ax-nul 5263 ax-pr 5395 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-ne 2960 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-dm 5665 df-iota 6509 df-fv 6563 |
| This theorem is used by: mrieqv2d 17839 mreexmrid 17843 mreexexlem3d 17846 mreexexlem4d 17847 mreexexd 17848 mreexdomd 17849 acsmapd 18754 acsdomd 18757 ismgmn0 18844 ecqusaddcl 19434 telgsumfz 20231 isirred 20676 tgclb 23315 alexsublem 24390 cnextcn 24413 ustssel 24552 fmucnd 24637 trcfilu 24639 cfiluweak 24640 ucnextcn 24649 imasdsf1olem 24719 imasf1oxmet 24721 comet 24859 restmetu 24916 wlkp1lem4 30282 wlkp1lem8 30286 1wlkdlem4 30758 eupth2lem3lem1 30856 eupth2lem3lem2 30857 gsumsubg 33674 gsummptfzsplitla 33687 opprqusplusg 34080 opprqus0g 34081 lsssra 34287 lbsdiflsp0 34325 fedgmullem1 34328 mzpcl34 43933 xlimbr 47040 xlimmnfvlem2 47046 xlimpnfvlem2 47050 sectpropdlem 50353 invpropdlem 50355 isopropdlem 50357 cicpropdlem 50366 oppcup3 50528 elxpcbasex1ALT 50574 elxpcbasex2ALT 50576 swapf1 50597 |
| Copyright terms: Public domain | W3C validator |