Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > nfab | GIF version |
Description: Bound-variable hypothesis builder for a class abstraction. (Contributed by Mario Carneiro, 11-Aug-2016.) |
Ref | Expression |
---|---|
nfab.1 | ⊢ Ⅎ𝑥𝜑 |
Ref | Expression |
---|---|
nfab | ⊢ Ⅎ𝑥{𝑦 ∣ 𝜑} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfab.1 | . . 3 ⊢ Ⅎ𝑥𝜑 | |
2 | 1 | nfsab 2131 | . 2 ⊢ Ⅎ𝑥 𝑧 ∈ {𝑦 ∣ 𝜑} |
3 | 2 | nfci 2271 | 1 ⊢ Ⅎ𝑥{𝑦 ∣ 𝜑} |
Colors of variables: wff set class |
Syntax hints: Ⅎwnf 1436 {cab 2125 Ⅎwnfc 2268 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-clab 2126 df-nfc 2270 |
This theorem is referenced by: nfaba1 2287 nfrabxy 2611 sbcel12g 3017 sbceqg 3018 nfun 3232 nfpw 3523 nfpr 3573 nfop 3721 nfuni 3742 nfint 3781 intab 3800 nfiunxy 3839 nfiinxy 3840 nfiunya 3841 nfiinya 3842 nfiu1 3843 nfii1 3844 nfopab 3996 nfopab1 3997 nfopab2 3998 repizf2 4086 nfdm 4783 fun11iun 5388 eusvobj2 5760 nfoprab1 5820 nfoprab2 5821 nfoprab3 5822 nfoprab 5823 nfrecs 6204 nffrec 6293 nfixpxy 6611 nfixp1 6612 |
Copyright terms: Public domain | W3C validator |