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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 1546 | . 2 | |
3 | 1, 2 | ax-mp 5 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wal 1314 wnf 1421 |
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 1408 ax-gen 1410 ax-4 1472 ax-ial 1499 ax-i5r 1500 |
This theorem depends on definitions: df-bi 116 df-nf 1422 |
This theorem is referenced by: stdpc5 1548 19.21-2 1630 19.32dc 1642 cbv1 1707 eu2 2021 mo3h 2030 moanim 2051 r2alf 2429 |
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