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Related theorems GIF version |
| Description: Membership in a restricted class abstraction with implicit substitution. |
| Ref | Expression |
|---|---|
| elrab.1 | ⊢ (x = A → (φ ↔ ψ)) |
| Ref | Expression |
|---|---|
| elrab | ⊢ (A ∈ {x ∈ B∣φ} ↔ (A ∈ B ∧ ψ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-17 925 | . 2 ⊢ (y ∈ A → ∀x y ∈ A) | |
| 2 | ax-17 925 | . 2 ⊢ (y ∈ B → ∀x y ∈ B) | |
| 3 | ax-17 925 | . 2 ⊢ (ψ → ∀xψ) | |
| 4 | elrab.1 | . 2 ⊢ (x = A → (φ ↔ ψ)) | |
| 5 | 1, 2, 3, 4 | elrabf 1421 | 1 ⊢ (A ∈ {x ∈ B∣φ} ↔ (A ∈ B ∧ ψ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 ∧ wa 196 = wceq 1091 ∈ wcel 1092 {crab 1204 |
| This theorem is referenced by: unisseq 1946 ssintub 1981 onintss 2266 onnminsb 2271 dfom2 2374 omssnlim 2386 ssnlim 2407 canth 2945 oawordeulem 3156 inf3lema 3460 rankr1 3518 rankuni 3533 scottex 3541 ac6 3576 kmlem1 3580 zornlem2 3604 zornlem7 3609 oncardid 3628 cardonle 3629 cardid 3635 iscard2 3660 ondomon 3662 ondomcard 3663 cardmin 3666 elz 4565 peano2uz 4602 uzind2 4604 uzwo 4605 nnwos 4610 uzwo3lem2 4615 zmin 4617 om2uzuz 4653 om2uzran 4655 uzrdgini 4658 sqrval 4729 sqrlem4 4734 ocelt 5162 projlem8 5200 projlem10 5202 projlem13 5205 projlem15 5207 shselt 5280 ococint 5298 hsupval2t 5301 chsupsn 5313 shsumval2 5361 elat 5738 hatomistic 5755 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-16 922 ax-17 925 ax-ext 1074 |
| This theorem depends on definitions: df-bi 128 df-an 198 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 df-rab 1208 df-v 1349 |