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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 2982. (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 2982 | . 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 |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1402 ∈ wcel 2209 {crab 2532 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rab 2537 df-v 2823 |
| This theorem is used by: 2omap 7324 ctssdccl 7457 suplocexprlemru 8092 suplocexprlemloc 8094 zsupssdc 10689 hashfibclem 11303 uzwodc 12838 nninfctlemfo 12841 lcmcllem 12869 lcmledvds 12872 hashdvds 13027 phisum 13047 odzcllem 13049 pcpremul 13100 ballotfilemirc 13332 znnen 13346 ennnfonelemj0 13349 ennnfonelemg 13351 gzsumress 13770 issubmd 13839 mhmeql 13857 ghmeql 14128 asplss 15124 aspsubrg 15126 gsumbagdiaglem 15184 psrlidmfi 15208 psrridmfi 15209 cdivcncfap 15847 cnopnap 15854 ivthinc 15886 limcdifap 15905 limcimolemlt 15907 dvcoapbr 15950 efnnfsumcl 16256 efchtqdvds 16282 dvdsppwf1o 16300 2lgslem1b 16430 incistruhgr 16553 upgr1elem1 16583 umgr1een 16588 subgruhgredgdm 16733 subumgredg2en 16734 subupgr 16736 subctctexmid 17252 |
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