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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 5848 | . 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 3441 class class class wbr 5099 dom cdm 5625 |
| 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 3401 df-v 3443 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4287 df-if 4481 df-sn 4582 df-pr 4584 df-op 4588 df-br 5100 df-dm 5635 |
| This theorem is referenced by: dmi 5871 dmep 5873 dmxp 5879 dmcoss 5925 dmcossOLD 5926 dmcosseq 5928 dmcosseqOLD 5929 dmcosseqOLDOLD 5930 dminss 6112 dmsnn0 6166 dffun7 6520 dffun8 6521 fnres 6620 opabiota 6917 fndmdif 6989 dff3 7047 frxp 8071 suppvalbr 8109 reldmtpos 8179 dmtpos 8183 aceq3lem 10035 axdc2lem 10363 axdclem2 10435 fpwwe2lem11 10557 nqerf 10846 shftdm 14999 bcthlem4 25288 dchrisumlem3 27463 eulerpath 30321 fundmpss 35974 elfix 36108 fnsingle 36124 fnimage 36134 funpartlem 36149 dfrecs2 36157 dfrdg4 36158 knoppcnlem9 36714 prtlem16 39208 undmrnresiss 43923 isoval2 49357 termolmd 49992 |
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