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| Mirrors > Home > MPE Home > Th. List > fnmpt | Structured version Visualization version GIF version | ||
| Description: The maps-to notation defines a function with domain. (Contributed by NM, 9-Apr-2013.) |
| Ref | Expression |
|---|---|
| mptfng.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) |
| Ref | Expression |
|---|---|
| fnmpt | ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → 𝐹 Fn 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 3474 | . . 3 ⊢ (𝐵 ∈ 𝑉 → 𝐵 ∈ V) | |
| 2 | 1 | ralimi 3101 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → ∀𝑥 ∈ 𝐴 𝐵 ∈ V) |
| 3 | mptfng.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 4 | 3 | mptfng 6675 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ V ↔ 𝐹 Fn 𝐴) |
| 5 | 2, 4 | sylib 221 | 1 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → 𝐹 Fn 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 ∀wral 3078 Vcvv 3453 ↦ cmpt 5190 Fn wfn 6532 |
| 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-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 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-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-fun 6539 df-fn 6540 |
| This theorem is used by: fnmptd 6677 mpt0 6678 fnmptfvd 7037 ralrnmptw 7091 ralrnmpt 7093 fmpt 7107 fmpt2d 7122 f1ocnvd 7669 offval2 7702 ofrfval2 7703 mptcnfimad 7987 fsplitfpar 8119 mptelixpg 8946 fifo 9406 cantnflem1 9672 infmap2 10223 compssiso 10380 gruiun 10812 mptnn0fsupp 14065 mptnn0fsuppr 14067 seqof 14127 sgnrn 15175 rlimi2 15605 prdsbas3 17572 prdsbascl 17574 prdsdsval2 17575 quslem 17635 fnmrc 17701 isofn 17870 ghmquskerco 19417 pmtrrn 19590 pmtrfrn 19591 pmtrdifwrdellem2 19615 gsummptcl 20100 mptscmfsupp0 21117 ofco2 22679 matunitlindflem1 22907 matunitlindflem2 22908 pmatcollpw2lem 23008 neif 23331 tgrest 23390 cmpfi 23639 elptr2 23806 xkoptsub 23886 ptcmplem2 24285 ptcmplem3 24286 prdsxmetlem 24600 prdsxmslem2 24761 bcth3 25565 uniioombllem6 25822 itg2const 25974 ellimc2 26111 dvrec 26189 dvmptres3 26190 ulmss 26640 ulmdvlem1 26643 ulmdvlem2 26644 ulmdvlem3 26645 itgulm2 26652 psercn 26669 tgjustr 28823 f1o3d 33107 f1od2 33198 psgnfzto1stlem 33548 frlmdim 34129 rmulccn 34446 esumnul 34566 esum0 34567 gsumesum 34577 ofcfval2 34622 signsplypnf 35066 signsply0 35067 hgt750lemb 35172 fineqvnttrclse 35658 wevgblacfn 35716 cdlemk56 41852 dicfnN 42064 hbtlem7 43974 refsumcn 45872 wessf1ornlem 46025 choicefi 46039 axccdom 46060 fsumsermpt 46417 liminfval2 46604 stoweidlem31 46867 stoweidlem59 46895 stirlinglem13 46922 dirkercncflem2 46940 fourierdlem62 47004 subsaliuncllem 47193 subsaliuncl 47194 hoidmvlelem3 47433 dfafn5b 48057 fundcmpsurinjlem2 48307 upgrimwlklem1 48821 lincresunit2 49416 isofnALT 49965 |
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