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| 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 6917. (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 6917 | . 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 2145 Vcvv 3453 ‘cfv 6537 |
| 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 2734 ax-nul 5267 ax-pr 5402 |
| 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 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-ne 2958 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-dm 5669 df-iota 6493 df-fv 6545 |
| This theorem is used by: mrieqv2d 17731 mreexmrid 17735 mreexexlem3d 17738 mreexexlem4d 17739 mreexexd 17740 mreexdomd 17741 acsdomd 18649 ismgmn0 18736 ecqusaddcl 19322 telgsumfz 20118 isirred 20561 tgclb 23196 alexsublem 24271 cnextcn 24294 ustssel 24433 fmucnd 24518 trcfilu 24520 cfiluweak 24521 ucnextcn 24530 imasdsf1olem 24600 imasf1oxmet 24602 comet 24740 restmetu 24797 wlkp1lem4 30120 wlkp1lem8 30124 1wlkdlem4 30596 eupth2lem3lem1 30694 eupth2lem3lem2 30695 gsumsubg 33473 gsummptfzsplitla 33486 opprqusplusg 33878 opprqus0g 33879 lsssra 34085 lbsdiflsp0 34123 fedgmullem1 34126 mzpcl34 43563 xlimbr 46642 xlimmnfvlem2 46648 xlimpnfvlem2 46652 sectpropdlem 49949 invpropdlem 49951 isopropdlem 49953 cicpropdlem 49962 oppcup3 50122 elxpcbasex1ALT 50162 elxpcbasex2ALT 50164 swapf1 50185 |
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