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Mirrors > Home > ILE Home > Th. List > 19.21 | Unicode version |
Description: Theorem 19.21 of [Margaris] p. 90. The hypothesis can be thought of as " is not free in ." (Contributed by NM, 5-Aug-1993.) (Revised by Mario Carneiro, 24-Sep-2016.) |
Ref | Expression |
---|---|
19.21.1 |
Ref | Expression |
---|---|
19.21 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.21.1 | . 2 | |
2 | 19.21t 1514 | . 2 | |
3 | 1, 2 | ax-mp 7 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 103 wal 1282 wnf 1389 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1376 ax-gen 1378 ax-4 1440 ax-ial 1467 ax-i5r 1468 |
This theorem depends on definitions: df-bi 115 df-nf 1390 |
This theorem is referenced by: stdpc5 1516 19.21-2 1597 19.32dc 1609 cbv1 1672 eu2 1985 mo3h 1994 moanim 2015 r2alf 2383 |
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