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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 2962. (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 2962 | . 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 1397 ∈ wcel 2202 {crab 2514 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rab 2519 df-v 2804 |
| This theorem is referenced by: ctssdccl 7310 suplocexprlemru 7939 suplocexprlemloc 7941 zsupssdc 10498 uzwodc 12609 nninfctlemfo 12612 lcmcllem 12640 lcmledvds 12643 phisum 12814 odzcllem 12816 pcpremul 12867 znnen 13020 ennnfonelemj0 13023 ennnfonelemg 13025 gsumress 13479 issubmd 13558 mhmeql 13576 ghmeql 13855 cdivcncfap 15330 cnopnap 15337 ivthinc 15369 limcdifap 15388 limcimolemlt 15390 dvcoapbr 15433 dvdsppwf1o 15715 2lgslem1b 15820 incistruhgr 15943 upgr1elem1 15973 umgr1een 15978 subgruhgredgdm 16123 subumgredg2en 16124 subupgr 16126 2omap 16597 subctctexmid 16604 |
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