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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 5888 | . 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 209 ∃wex 1807 ∈ wcel 2141 Vcvv 3453 class class class wbr 5108 dom cdm 5661 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-sb 2095 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3415 df-v 3455 df-dif 3907 df-un 3909 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-dm 5671 |
| This theorem is referenced by: dmi 5911 dmep 5913 dmxp 5919 dmcoss 5965 dmcossOLD 5966 dmcosseq 5968 dmcosseqOLD 5969 dminss 6150 dmsnn0 6208 dffun7 6563 dffun8 6564 fnres 6662 opabiota 6963 fndmdif 7037 dff3 7095 frxp 8121 suppvalbr 8159 reldmtpos 8229 dmtpos 8233 aceq3lem 10103 axdc2lem 10431 axdclem2 10503 fpwwe2lem11 10625 nqerf 10914 shftdm 15107 bcthlem4 25465 dchrisumlem3 27631 eulerpath 30558 fundmpss 36213 elfix 36347 fnsingle 36363 fnimage 36373 funpartlem 36388 dfrecs2 36396 dfrdg4 36397 knoppcnlem9 37034 prtlem16 39589 undmrnresiss 44278 isoval2 49758 termolmd 50393 |
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