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Mirrors > Home > MPE Home > Th. List > funmpt | Structured version Visualization version GIF version |
Description: A function in maps-to notation is a function. (Contributed by Mario Carneiro, 13-Jan-2013.) |
Ref | Expression |
---|---|
funmpt | ⊢ Fun (𝑥 ∈ 𝐴 ↦ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funopab4 6392 | . 2 ⊢ Fun {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)} | |
2 | df-mpt 5147 | . . 3 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)} | |
3 | 2 | funeqi 6376 | . 2 ⊢ (Fun (𝑥 ∈ 𝐴 ↦ 𝐵) ↔ Fun {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)}) |
4 | 1, 3 | mpbir 233 | 1 ⊢ Fun (𝑥 ∈ 𝐴 ↦ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 398 = wceq 1537 ∈ wcel 2114 {copab 5128 ↦ cmpt 5146 Fun wfun 6349 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pr 5330 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rab 3147 df-v 3496 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-fun 6357 |
This theorem is referenced by: funmpt2 6394 resfunexg 6978 mptexg 6984 mptexgf 6985 mptexw 7654 brtpos2 7898 tposfun 7908 mptfi 8823 sniffsupp 8873 cantnfrescl 9139 cantnflem1 9152 r0weon 9438 axcc2lem 9858 mptct 9960 negfi 11589 mptnn0fsupp 13366 ccatalpha 13947 mreacs 16929 acsfn 16930 isofval 17027 lubfun 17590 glbfun 17603 acsficl2d 17786 gsum2dlem2 19091 gsum2d 19092 dprdfinv 19141 dprdfadd 19142 dmdprdsplitlem 19159 dpjidcl 19180 mptscmfsupp0 19699 psrass1lem 20157 psrlidm 20183 psrridm 20184 psrass1 20185 psrass23l 20188 psrcom 20189 psrass23 20190 mplsubrg 20220 mplmon 20244 mplmonmul 20245 mplcoe1 20246 mplcoe5 20249 mplbas2 20251 evlslem2 20292 evlslem6 20294 psropprmul 20406 coe1mul2 20437 pjpm 20852 frlmphllem 20924 frlmphl 20925 uvcff 20935 uvcresum 20937 oftpos 21061 pmatcollpw2lem 21385 tgrest 21767 cmpfi 22016 1stcrestlem 22060 ptcnplem 22229 xkoinjcn 22295 symgtgp 22714 eltsms 22741 rrxmval 24008 tdeglem4 24654 plypf1 24802 tayl0 24950 taylthlem1 24961 xrlimcnp 25546 abrexexd 30269 ofpreima 30410 mptctf 30453 psgnfzto1stlem 30742 rmfsupp2 30866 locfinreflem 31104 measdivcstALTV 31484 sxbrsigalem0 31529 sitgf 31605 nosupno 33203 imageval 33391 poimirlem30 34937 poimir 34940 choicefi 41512 fourierdlem80 42520 sge0tsms 42711 scmsuppss 44469 rmfsupp 44471 scmfsupp 44475 fdivval 44648 |
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