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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 5872 | . 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 1798 ∈ wcel 2141 Vcvv 3453 class class class wbr 5099 dom cdm 5645 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-ss 3921 df-nul 4286 df-if 4480 df-sn 4582 df-pr 4584 df-op 4588 df-br 5100 df-dm 5655 |
| This theorem is referenced by: dmi 5895 dmep 5897 dmxp 5903 dmcoss 5949 dmcossOLD 5950 dmcosseq 5952 dmcosseqOLD 5953 dmcosseqOLDOLD 5954 dminss 6133 dmsnn0 6188 dffun7 6542 dffun8 6543 fnres 6642 opabiota 6943 fndmdif 7017 dff3 7075 frxp 8099 suppvalbr 8137 reldmtpos 8207 dmtpos 8211 aceq3lem 10071 axdc2lem 10400 axdclem2 10472 fpwwe2lem11 10594 nqerf 10883 shftdm 15079 bcthlem4 25367 dchrisumlem3 27530 eulerpath 30387 fundmpss 36070 elfix 36204 fnsingle 36220 fnimage 36230 funpartlem 36245 dfrecs2 36253 dfrdg4 36254 knoppcnlem9 36892 prtlem16 39446 undmrnresiss 44133 isoval2 49609 termolmd 50244 |
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