| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 6241 | . 2 ⊢ dom 𝐹 = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ V} |
| 3 | 2 | ssrab3 4036 | 1 ⊢ dom 𝐹 ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1570 ∈ wcel 2143 Vcvv 3455 ⊆ wss 3905 ↦ cmpt 5192 dom cdm 5661 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-pr 5404 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-rab 3417 df-v 3457 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-br 5110 df-opab 5174 df-mpt 5193 df-xp 5667 df-rel 5668 df-cnv 5669 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 |
| This theorem is referenced by: mptrcl 6999 fvmptss 7002 fvmptex 7004 fvmptnf 7012 elfvmptrab1w 7017 elfvmptrab1 7018 mptexg 7219 mptexw 7946 dmmpossx 8059 tposssxp 8222 mptfi 9304 cnvimamptfin 9306 cantnfres 9642 mptct 10517 arwrcl 18096 submgmrcl 18748 cntzrcl 19392 gsumconst 19999 psrass1lem 22083 psrass1 22113 psrass23l 22116 psrcom 22117 psrass23 22118 mpfrcl 22236 psropprmul 22397 coe1mul2 22430 lmrcl 23388 1stcrestlem 23609 ptbasfi 23738 isxms2 24605 setsmstopn 24635 tngtopn 24807 rrxmval 25564 ulmss 26560 dchrrcl 27404 gsummpt2co 33368 locfinreflem 34230 sitgclg 34732 cvmsrcl 35756 snmlval 35823 gonan0 35884 bj-fvmptunsn1 37921 eldiophb 43508 elmnc 43883 itgocn 43911 tannpoly 47647 dmmpossx2 49137 dmtposss 49674 |
| Copyright terms: Public domain | W3C validator |