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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 5851 | . 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 5628 |
| 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 5638 |
| This theorem is referenced by: dmi 5874 dmep 5876 dmxp 5882 dmcoss 5928 dmcossOLD 5929 dmcosseq 5931 dmcosseqOLD 5932 dmcosseqOLDOLD 5933 dminss 6115 dmsnn0 6169 dffun7 6523 dffun8 6524 fnres 6623 opabiota 6920 fndmdif 6992 dff3 7050 frxp 8073 suppvalbr 8111 reldmtpos 8181 dmtpos 8185 aceq3lem 10039 axdc2lem 10367 axdclem2 10439 fpwwe2lem11 10561 nqerf 10850 shftdm 15030 bcthlem4 25291 dchrisumlem3 27451 eulerpath 30308 fundmpss 35946 elfix 36080 fnsingle 36096 fnimage 36106 funpartlem 36121 dfrecs2 36129 dfrdg4 36130 knoppcnlem9 36758 prtlem16 39312 undmrnresiss 44028 isoval2 49501 termolmd 50136 |
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