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| 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 5845 | . 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 206 ∃wex 1781 ∈ wcel 2114 Vcvv 3430 class class class wbr 5086 dom cdm 5622 |
| 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-ext 2709 |
| 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-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-dm 5632 |
| This theorem is referenced by: dmi 5868 dmep 5870 dmxp 5876 dmcoss 5922 dmcossOLD 5923 dmcosseq 5925 dmcosseqOLD 5926 dmcosseqOLDOLD 5927 dminss 6109 dmsnn0 6163 dffun7 6517 dffun8 6518 fnres 6617 opabiota 6914 fndmdif 6986 dff3 7044 frxp 8067 suppvalbr 8105 reldmtpos 8175 dmtpos 8179 aceq3lem 10031 axdc2lem 10359 axdclem2 10431 fpwwe2lem11 10553 nqerf 10842 shftdm 14995 bcthlem4 25272 dchrisumlem3 27442 eulerpath 30300 fundmpss 35955 elfix 36089 fnsingle 36105 fnimage 36115 funpartlem 36130 dfrecs2 36138 dfrdg4 36139 knoppcnlem9 36759 prtlem16 39306 undmrnresiss 44034 isoval2 49468 termolmd 50103 |
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