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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 2893. (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 2893 | . 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 1353 ∈ wcel 2148 {crab 2459 |
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 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 |
This theorem depends on definitions: df-bi 117 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-rab 2464 df-v 2739 |
This theorem is referenced by: ctssdccl 7105 suplocexprlemru 7713 suplocexprlemloc 7715 zsupssdc 11945 uzwodc 12028 phisum 12230 odzcllem 12232 pcpremul 12283 znnen 12389 ennnfonelemj0 12392 ennnfonelemg 12394 issubmd 12793 mhmeql 12804 cdivcncfap 13869 cnopnap 13876 ivthinc 13903 limcdifap 13913 limcimolemlt 13915 dvcoapbr 13953 subctctexmid 14521 |
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