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Mirrors > Home > ILE Home > Th. List > ax-ial | Unicode version |
Description: is not free in . One of the axioms of predicate logic. (Contributed by Mario Carneiro, 31-Jan-2015.) |
Ref | Expression |
---|---|
ax-ial |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph | . . 3 | |
2 | vx | . . 3 | |
3 | 1, 2 | wal 1314 | . 2 |
4 | 3, 2 | wal 1314 | . 2 |
5 | 3, 4 | wi 4 | 1 |
Colors of variables: wff set class |
This axiom is referenced by: hba1 1505 ax6b 1614 exdistrfor 1756 sbcof2 1766 hbs1 1891 sbcomxyyz 1923 |
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