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Mirrors > Home > MPE Home > Th. List > dmmptss | Structured version Visualization version GIF version |
Description: The domain of a mapping is a subset of its base class. (Contributed by Scott Fenton, 17-Jun-2013.) |
Ref | Expression |
---|---|
dmmpt.1 | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) |
Ref | Expression |
---|---|
dmmptss | ⊢ dom 𝐹 ⊆ 𝐴 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmmpt.1 | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
2 | 1 | dmmpt 6083 | . 2 ⊢ dom 𝐹 = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ V} |
3 | 2 | ssrab3 3981 | 1 ⊢ dom 𝐹 ⊆ 𝐴 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1543 ∈ wcel 2112 Vcvv 3398 ⊆ wss 3853 ↦ cmpt 5120 dom cdm 5536 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pr 5307 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-rab 3060 df-v 3400 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-sn 4528 df-pr 4530 df-op 4534 df-br 5040 df-opab 5102 df-mpt 5121 df-xp 5542 df-rel 5543 df-cnv 5544 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 |
This theorem is referenced by: mptrcl 6805 fvmptss 6808 fvmptex 6810 fvmptnf 6818 elfvmptrab1w 6822 elfvmptrab1 6823 mptexg 7015 mptexw 7704 dmmpossx 7814 tposssxp 7950 mptfi 8953 cnvimamptfin 8955 cantnfres 9270 mptct 10117 arwrcl 17504 cntzrcl 18675 gsumconst 19273 psrass1lemOLD 20853 psrass1lem 20856 psrass1 20884 psrass23l 20887 psrcom 20888 psrass23 20889 mpfrcl 20999 psropprmul 21113 coe1mul2 21144 lmrcl 22082 1stcrestlem 22303 ptbasfi 22432 isxms2 23300 setsmstopn 23330 tngtopn 23502 rrxmval 24256 ulmss 25243 dchrrcl 26075 gsummpt2co 30981 locfinreflem 31458 sitgclg 31975 cvmsrcl 32893 snmlval 32960 gonan0 33021 bj-fvmptunsn1 35112 eldiophb 40223 elmnc 40605 itgocn 40633 submgmrcl 44952 dmmpossx2 45288 |
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