| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > eldm | Structured version Visualization version GIF version | ||
| Description: Membership in a domain. Theorem 4 of [Suppes] p. 59. (Contributed by NM, 2-Apr-2004.) |
| Ref | Expression |
|---|---|
| eldm.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| eldm | ⊢ (𝐴 ∈ dom 𝐵 ↔ ∃𝑦 𝐴𝐵𝑦) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eldm.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | eldmg 5846 | . 2 ⊢ (𝐴 ∈ V → (𝐴 ∈ dom 𝐵 ↔ ∃𝑦 𝐴𝐵𝑦)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 ∈ dom 𝐵 ↔ ∃𝑦 𝐴𝐵𝑦) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∃wex 1787 ∈ wcel 2121 Vcvv 3433 class class class wbr 5074 dom cdm 5620 |
| 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 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-rab 3394 df-v 3435 df-dif 3887 df-un 3889 df-ss 3901 df-nul 4264 df-if 4457 df-sn 4558 df-pr 4560 df-op 4564 df-br 5075 df-dm 5630 |
| This theorem is referenced by: dmi 5869 dmep 5871 dmxp 5877 dmcoss 5923 dmcossOLD 5924 dmcosseq 5926 dmcosseqOLD 5927 dmcosseqOLDOLD 5928 dminss 6107 dmsnn0 6161 dffun7 6515 dffun8 6516 fnres 6615 opabiota 6912 fndmdif 6986 dff3 7044 frxp 8068 suppvalbr 8106 reldmtpos 8176 dmtpos 8180 aceq3lem 10037 axdc2lem 10366 axdclem2 10438 fpwwe2lem11 10560 nqerf 10849 shftdm 15028 bcthlem4 25315 dchrisumlem3 27475 eulerpath 30331 fundmpss 36008 elfix 36142 fnsingle 36158 fnimage 36168 funpartlem 36183 dfrecs2 36191 dfrdg4 36192 knoppcnlem9 36820 prtlem16 39374 undmrnresiss 44061 isoval2 49537 termolmd 50172 |
| Copyright terms: Public domain | W3C validator |