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Mirrors > Home > MPE Home > Th. List > eldm2 | Structured version Visualization version GIF version |
Description: Membership in a domain. Theorem 4 of [Suppes] p. 59. (Contributed by NM, 1-Aug-1994.) |
Ref | Expression |
---|---|
eldm.1 | ⊢ 𝐴 ∈ V |
Ref | Expression |
---|---|
eldm2 | ⊢ (𝐴 ∈ dom 𝐵 ↔ ∃𝑦〈𝐴, 𝑦〉 ∈ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eldm.1 | . 2 ⊢ 𝐴 ∈ V | |
2 | eldm2g 5797 | . 2 ⊢ (𝐴 ∈ V → (𝐴 ∈ dom 𝐵 ↔ ∃𝑦〈𝐴, 𝑦〉 ∈ 𝐵)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 ∈ dom 𝐵 ↔ ∃𝑦〈𝐴, 𝑦〉 ∈ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∃wex 1783 ∈ wcel 2108 Vcvv 3422 〈cop 4564 dom cdm 5580 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-ext 2709 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-sb 2069 df-clab 2716 df-cleq 2730 df-clel 2817 df-rab 3072 df-v 3424 df-dif 3886 df-un 3888 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-br 5071 df-dm 5590 |
This theorem is referenced by: dmss 5800 opeldm 5805 dmin 5809 dmiun 5811 dmuni 5812 dm0 5818 reldm0 5826 dmrnssfld 5868 dmcoss 5869 dmcosseq 5871 dmres 5902 iss 5932 dmsnopg 6105 relssdmrn 6161 funssres 6462 dmfco 6846 fiun 7759 f1iun 7760 frrlem8 8080 frrlem10 8082 wfrlem12OLD 8122 axdc3lem2 10138 fnpr2ob 17186 gsum2d2 19490 cnlnssadj 30343 prsdm 31766 eldm3 33634 dfdm5 33653 iss2 36406 |
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