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| Mirrors > Home > ILE Home > Th. List > elrabd | GIF version | ||
| Description: Membership in a restricted class abstraction, using implicit substitution. Deduction version of elrab 2959. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
| Ref | Expression |
|---|---|
| elrabd.1 | ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜒)) |
| elrabd.2 | ⊢ (𝜑 → 𝐴 ∈ 𝐵) |
| elrabd.3 | ⊢ (𝜑 → 𝜒) |
| Ref | Expression |
|---|---|
| elrabd | ⊢ (𝜑 → 𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrabd.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝐵) | |
| 2 | elrabd.3 | . . 3 ⊢ (𝜑 → 𝜒) | |
| 3 | 1, 2 | jca 306 | . 2 ⊢ (𝜑 → (𝐴 ∈ 𝐵 ∧ 𝜒)) |
| 4 | elrabd.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜒)) | |
| 5 | 4 | elrab 2959 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓} ↔ (𝐴 ∈ 𝐵 ∧ 𝜒)) |
| 6 | 3, 5 | sylibr 134 | 1 ⊢ (𝜑 → 𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜓}) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1395 ∈ wcel 2200 {crab 2512 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rab 2517 df-v 2801 |
| This theorem is referenced by: ctssdccl 7289 suplocexprlemru 7917 suplocexprlemloc 7919 zsupssdc 10470 uzwodc 12573 nninfctlemfo 12576 lcmcllem 12604 lcmledvds 12607 phisum 12778 odzcllem 12780 pcpremul 12831 znnen 12984 ennnfonelemj0 12987 ennnfonelemg 12989 gsumress 13443 issubmd 13522 mhmeql 13540 ghmeql 13819 cdivcncfap 15293 cnopnap 15300 ivthinc 15332 limcdifap 15351 limcimolemlt 15353 dvcoapbr 15396 dvdsppwf1o 15678 2lgslem1b 15783 incistruhgr 15905 upgr1elem1 15935 2omap 16418 subctctexmid 16425 |
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