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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 6386 | . 2 ⊢ Fun {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)} | |
2 | df-mpt 5139 | . . 3 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)} | |
3 | 2 | funeqi 6370 | . 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 1533 ∈ wcel 2110 {copab 5120 ↦ cmpt 5138 Fun wfun 6343 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pr 5321 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rab 3147 df-v 3496 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-sn 4561 df-pr 4563 df-op 4567 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-fun 6351 |
This theorem is referenced by: funmpt2 6388 resfunexg 6972 mptexg 6978 mptexgf 6979 mptexw 7648 brtpos2 7892 tposfun 7902 mptfi 8817 sniffsupp 8867 cantnfrescl 9133 cantnflem1 9146 r0weon 9432 axcc2lem 9852 mptct 9954 negfi 11583 mptnn0fsupp 13359 ccatalpha 13941 mreacs 16923 acsfn 16924 isofval 17021 lubfun 17584 glbfun 17597 acsficl2d 17780 gsum2dlem2 19085 gsum2d 19086 dprdfinv 19135 dprdfadd 19136 dmdprdsplitlem 19153 dpjidcl 19174 mptscmfsupp0 19693 psrass1lem 20151 psrlidm 20177 psrridm 20178 psrass1 20179 psrass23l 20182 psrcom 20183 psrass23 20184 mplsubrg 20214 mplmon 20238 mplmonmul 20239 mplcoe1 20240 mplcoe5 20243 mplbas2 20245 evlslem2 20286 evlslem6 20288 psropprmul 20400 coe1mul2 20431 pjpm 20846 frlmphllem 20918 frlmphl 20919 uvcff 20929 uvcresum 20931 oftpos 21055 pmatcollpw2lem 21379 tgrest 21761 cmpfi 22010 1stcrestlem 22054 ptcnplem 22223 xkoinjcn 22289 symgtgp 22708 eltsms 22735 rrxmval 24002 tdeglem4 24648 plypf1 24796 tayl0 24944 taylthlem1 24955 xrlimcnp 25540 abrexexd 30263 ofpreima 30404 mptctf 30447 psgnfzto1stlem 30737 rmfsupp2 30861 locfinreflem 31099 measdivcstALTV 31479 sxbrsigalem0 31524 sitgf 31600 nosupno 33198 imageval 33386 poimirlem30 34916 poimir 34919 choicefi 41456 fourierdlem80 42465 sge0tsms 42656 scmsuppss 44414 rmfsupp 44416 scmfsupp 44420 fdivval 44593 |
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