| 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 6206 | . 2 ⊢ dom 𝐹 = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ V} |
| 3 | 2 | ssrab3 4036 | 1 ⊢ dom 𝐹 ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 Vcvv 3442 ⊆ wss 3903 ↦ cmpt 5181 dom cdm 5632 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-pr 5379 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-br 5101 df-opab 5163 df-mpt 5182 df-xp 5638 df-rel 5639 df-cnv 5640 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 |
| This theorem is referenced by: mptrcl 6959 fvmptss 6962 fvmptex 6964 fvmptnf 6972 elfvmptrab1w 6977 elfvmptrab1 6978 mptexg 7177 mptexw 7907 dmmpossx 8020 tposssxp 8182 mptfi 9263 cnvimamptfin 9265 cantnfres 9598 mptct 10460 arwrcl 17980 submgmrcl 18632 cntzrcl 19268 gsumconst 19875 psrass1lem 21900 psrass1 21931 psrass23l 21934 psrcom 21935 psrass23 21936 mpfrcl 22052 psropprmul 22190 coe1mul2 22223 lmrcl 23187 1stcrestlem 23408 ptbasfi 23537 isxms2 24404 setsmstopn 24434 tngtopn 24606 rrxmval 25373 ulmss 26374 dchrrcl 27219 gsummpt2co 33142 locfinreflem 34018 sitgclg 34520 cvmsrcl 35480 snmlval 35547 gonan0 35608 bj-fvmptunsn1 37512 eldiophb 43114 elmnc 43493 itgocn 43521 tannpoly 47250 dmmpossx2 48697 dmtposss 49235 |
| Copyright terms: Public domain | W3C validator |