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Mirrors > Home > ILE Home > Th. List > hbab1 | Unicode version |
Description: Bound-variable hypothesis builder for a class abstraction. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
hbab1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-clab 2151 | . 2 | |
2 | hbs1 1925 | . 2 | |
3 | 1, 2 | hbxfrbi 1459 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wal 1340 wsb 1749 wcel 2135 cab 2150 |
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-5 1434 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-11 1493 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 |
This theorem depends on definitions: df-bi 116 df-sb 1750 df-clab 2151 |
This theorem is referenced by: nfsab1 2154 abeq2 2273 |
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