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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 5846 | . 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 3439 class class class wbr 5097 dom cdm 5623 |
| 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 2707 |
| 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 2714 df-cleq 2727 df-clel 2810 df-rab 3399 df-v 3441 df-dif 3903 df-un 3905 df-ss 3917 df-nul 4285 df-if 4479 df-sn 4580 df-pr 4582 df-op 4586 df-br 5098 df-dm 5633 |
| This theorem is referenced by: dmi 5869 dmep 5871 dmxp 5877 dmcoss 5923 dmcossOLD 5924 dmcosseq 5926 dmcosseqOLD 5927 dmcosseqOLDOLD 5928 dminss 6110 dmsnn0 6164 dffun7 6518 dffun8 6519 fnres 6618 opabiota 6915 fndmdif 6987 dff3 7045 frxp 8068 suppvalbr 8106 reldmtpos 8176 dmtpos 8180 aceq3lem 10032 axdc2lem 10360 axdclem2 10432 fpwwe2lem11 10554 nqerf 10843 shftdm 14996 bcthlem4 25285 dchrisumlem3 27460 eulerpath 30297 fundmpss 35940 elfix 36074 fnsingle 36090 fnimage 36100 funpartlem 36115 dfrecs2 36123 dfrdg4 36124 knoppcnlem9 36674 prtlem16 39164 undmrnresiss 43882 isoval2 49317 termolmd 49952 |
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