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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 5876 | . 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 1801 ∈ wcel 2144 Vcvv 3456 class class class wbr 5102 dom cdm 5649 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-ext 2736 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-sb 2093 df-clab 2743 df-cleq 2756 df-clel 2839 df-rab 3417 df-v 3458 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4288 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5103 df-dm 5659 |
| This theorem is referenced by: dmi 5899 dmep 5901 dmxp 5907 dmcoss 5953 dmcossOLD 5954 dmcosseq 5956 dmcosseqOLD 5957 dmcosseqOLDOLD 5958 dminss 6140 dmsnn0 6196 dffun7 6550 dffun8 6551 fnres 6650 opabiota 6951 fndmdif 7025 dff3 7083 frxp 8108 suppvalbr 8146 reldmtpos 8216 dmtpos 8220 aceq3lem 10078 axdc2lem 10407 axdclem2 10479 fpwwe2lem11 10601 nqerf 10890 shftdm 15086 bcthlem4 25391 dchrisumlem3 27557 eulerpath 30445 fundmpss 36122 elfix 36256 fnsingle 36272 fnimage 36282 funpartlem 36297 dfrecs2 36305 dfrdg4 36306 knoppcnlem9 36944 prtlem16 39498 undmrnresiss 44185 isoval2 49661 termolmd 50296 |
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