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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 2960. (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 2960 | . 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 2802 |
| This theorem is referenced by: ctssdccl 7301 suplocexprlemru 7929 suplocexprlemloc 7931 zsupssdc 10488 uzwodc 12598 nninfctlemfo 12601 lcmcllem 12629 lcmledvds 12632 phisum 12803 odzcllem 12805 pcpremul 12856 znnen 13009 ennnfonelemj0 13012 ennnfonelemg 13014 gsumress 13468 issubmd 13547 mhmeql 13565 ghmeql 13844 cdivcncfap 15318 cnopnap 15325 ivthinc 15357 limcdifap 15376 limcimolemlt 15378 dvcoapbr 15421 dvdsppwf1o 15703 2lgslem1b 15808 incistruhgr 15931 upgr1elem1 15961 2omap 16530 subctctexmid 16537 |
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