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| Mirrors > Home > MPE Home > Th. List > elima2 | Structured version Visualization version GIF version | ||
| Description: Membership in an image. Theorem 34 of [Suppes] p. 65. (Contributed by NM, 11-Aug-2004.) |
| Ref | Expression |
|---|---|
| elima.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| elima2 | ⊢ (𝐴 ∈ (𝐵 “ 𝐶) ↔ ∃𝑥(𝑥 ∈ 𝐶 ∧ 𝑥𝐵𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elima.1 | . . 3 ⊢ 𝐴 ∈ V | |
| 2 | 1 | elima 6063 | . 2 ⊢ (𝐴 ∈ (𝐵 “ 𝐶) ↔ ∃𝑥 ∈ 𝐶 𝑥𝐵𝐴) |
| 3 | df-rex 3060 | . 2 ⊢ (∃𝑥 ∈ 𝐶 𝑥𝐵𝐴 ↔ ∃𝑥(𝑥 ∈ 𝐶 ∧ 𝑥𝐵𝐴)) | |
| 4 | 2, 3 | bitri 275 | 1 ⊢ (𝐴 ∈ (𝐵 “ 𝐶) ↔ ∃𝑥(𝑥 ∈ 𝐶 ∧ 𝑥𝐵𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∃wex 1778 ∈ wcel 2107 ∃wrex 3059 Vcvv 3463 class class class wbr 5123 “ cima 5668 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-ext 2706 ax-sep 5276 ax-nul 5286 ax-pr 5412 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-sb 2064 df-clab 2713 df-cleq 2726 df-clel 2808 df-ral 3051 df-rex 3060 df-rab 3420 df-v 3465 df-dif 3934 df-un 3936 df-in 3938 df-ss 3948 df-nul 4314 df-if 4506 df-sn 4607 df-pr 4609 df-op 4613 df-br 5124 df-opab 5186 df-xp 5671 df-cnv 5673 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 |
| This theorem is referenced by: elima3 6065 dminss 6153 imainss 6154 imadif 6630 metcld2 25277 isch2 31170 dfdm5 35732 dfrn5 35733 brimg 35897 coxp 48702 |
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