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Mirrors > Home > MPE Home > Th. List > mpt2ex | Structured version Visualization version GIF version |
Description: If the domain of a function given by maps-to notation is a set, the function is a set. (Contributed by Mario Carneiro, 20-Dec-2013.) |
Ref | Expression |
---|---|
mpt2ex.1 | ⊢ 𝐴 ∈ V |
mpt2ex.2 | ⊢ 𝐵 ∈ V |
Ref | Expression |
---|---|
mpt2ex | ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpt2ex.1 | . 2 ⊢ 𝐴 ∈ V | |
2 | mpt2ex.2 | . . 3 ⊢ 𝐵 ∈ V | |
3 | 2 | rgenw 2908 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐵 ∈ V |
4 | eqid 2610 | . . 3 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
5 | 4 | mpt2exxg 7133 | . 2 ⊢ ((𝐴 ∈ V ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ V) → (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) ∈ V) |
6 | 1, 3, 5 | mp2an 704 | 1 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 1977 ∀wral 2896 Vcvv 3173 ↦ cmpt2 6551 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-oprab 6553 df-mpt2 6554 df-1st 7059 df-2nd 7060 |
This theorem is referenced by: qexALT 11679 ruclem13 14810 vdwapfval 15513 prdsco 15951 imasvsca 16003 homffval 16173 comfffval 16181 comffval 16182 comfffn 16187 comfeq 16189 oppccofval 16199 monfval 16215 sectffval 16233 invffval 16241 cofu1st 16366 cofu2nd 16368 cofucl 16371 natfval 16429 fuccofval 16442 fucco 16445 coafval 16537 setcco 16556 catchomfval 16571 catccofval 16573 catcco 16574 estrcco 16593 xpcval 16640 xpchomfval 16642 xpccofval 16645 xpcco 16646 1stf1 16655 1stf2 16656 2ndf1 16658 2ndf2 16659 1stfcl 16660 2ndfcl 16661 prf1 16663 prf2fval 16664 prfcl 16666 prf1st 16667 prf2nd 16668 evlf2 16681 evlf1 16683 evlfcl 16685 curf1fval 16687 curf11 16689 curf12 16690 curf1cl 16691 curf2 16692 curfcl 16695 hof1fval 16716 hof2fval 16718 hofcl 16722 yonedalem3 16743 mgmnsgrpex 17241 sgrpnmndex 17242 grpsubfval 17287 mulgfval 17365 symgplusg 17632 lsmfval 17876 pj1fval 17930 dvrfval 18507 psrmulr 19205 psrvscafval 19211 evlslem2 19333 mamufval 20010 mvmulfval 20167 isphtpy 22588 pcofval 22618 q1pval 23717 r1pval 23720 motplusg 25237 midf 25468 ismidb 25470 ttgval 25555 ebtwntg 25662 ecgrtg 25663 elntg 25664 vsfval 26872 dipfval 26941 smatfval 29189 lmatval 29207 qqhval 29346 dya2iocuni 29672 sxbrsigalem5 29677 sitmval 29738 signswplusg 29958 mclsrcl 30712 mclsval 30714 ldualfvs 33441 paddfval 34101 tgrpopr 35053 erngfplus 35108 erngfmul 35111 erngfplus-rN 35116 erngfmul-rN 35119 dvafvadd 35320 dvafvsca 35322 dvaabl 35331 dvhfvadd 35398 dvhfvsca 35407 djafvalN 35441 djhfval 35704 hlhilip 36258 mendplusgfval 36774 mendmulrfval 36776 mendvscafval 36779 hoidmvval 39467 wwlksnon 41049 wspthsnon 41050 cznrng 41747 cznnring 41748 rngchomfvalALTV 41776 rngccofvalALTV 41779 rngccoALTV 41780 ringchomfvalALTV 41839 ringccofvalALTV 41842 ringccoALTV 41843 |
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