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| Mirrors > Home > ILE Home > Th. List > mptex | GIF version | ||
| Description: If the domain of a function given by maps-to notation is a set, the function is a set. (Contributed by NM, 22-Apr-2005.) (Revised by Mario Carneiro, 20-Dec-2013.) |
| Ref | Expression |
|---|---|
| mptex.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| mptex | ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mptex.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | mptexg 5942 | . 2 ⊢ (𝐴 ∈ V → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 Vcvv 2821 ↦ cmpt 4192 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4246 ax-sep 4249 ax-pow 4311 ax-pr 4346 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-iun 4014 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 df-iota 5337 df-fun 5379 df-fn 5380 df-f 5381 df-f1 5382 df-fo 5383 df-f1o 5384 df-fv 5385 |
| This theorem is used by: mptrabex 5946 eufnfv 5949 abrexex 6346 ofmres 6369 difinfsn 7440 ctmlemr 7448 ctssdclemn0 7450 ctssdc 7453 enumct 7455 frec2uzrand 10844 frec2uzf1od 10845 frecfzennn 10865 uzennn 10875 0tonninf 10879 1tonninf 10880 hashinfom 11219 absval 11769 climle 12102 climcvg1nlem 12117 iserabs 12244 isumshft 12259 divcnv 12266 trireciplem 12269 expcnvap0 12271 expcnvre 12272 expcnv 12273 explecnv 12274 geolim 12280 geo2lim 12285 mertenslem2 12305 eftlub 12459 nninfctlemfo 12819 nninfct 12820 1arithlem1 13144 1arith 13148 ballotfilemfval 13231 ballotfilemsval 13254 ballotfilemrval 13263 ballotfilem7 13281 ctiunct 13333 restfn 13599 cndsex 14892 metuex 14894 zrhval2 14956 ivthreinc 15748 elply 15837 depindlem1 16759 peano4nninf 17061 peano3nninf 17062 nninfsellemeq 17069 nninfsellemeqinf 17071 dceqnconst 17122 dcapnconst 17123 |
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