Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ax-ie1 | Unicode version |
Description: is bound in . One of the axioms of predicate logic. (Contributed by Mario Carneiro, 31-Jan-2015.) |
Ref | Expression |
---|---|
ax-ie1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph | . . 3 | |
2 | vx | . . 3 | |
3 | 1, 2 | wex 1485 | . 2 |
4 | 3, 2 | wal 1346 | . 2 |
5 | 3, 4 | wi 4 | 1 |
Colors of variables: wff set class |
This axiom is referenced by: hbe1 1488 sbidm 1844 |
Copyright terms: Public domain | W3C validator |