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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 5319 | . 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 196 ∃wex 1704 ∈ wcel 1990 Vcvv 3200 class class class wbr 4653 dom cdm 5114 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-dm 5124 |
This theorem is referenced by: dmi 5340 dmcoss 5385 dmcosseq 5387 dminss 5547 dmsnn0 5600 dffun7 5915 dffun8 5916 fnres 6007 opabiota 6261 fndmdif 6321 dff3 6372 frxp 7287 suppvalbr 7299 reldmtpos 7360 dmtpos 7364 aceq3lem 8943 axdc2lem 9270 axdclem2 9342 fpwwe2lem12 9463 nqerf 9752 shftdm 13811 xpsfrnel2 16225 bcthlem4 23124 dchrisumlem3 25180 eulerpath 27101 fundmpss 31664 elfix 32010 fnsingle 32026 fnimage 32036 funpartlem 32049 dfrecs2 32057 dfrdg4 32058 knoppcnlem9 32491 prtlem16 34154 undmrnresiss 37910 |
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