Description: Deduction distributing an embedded antecedent. Deduction form of ax-2 . (Contributed by NM, 23-Jun-1994)
Ref | Expression | ||
---|---|---|---|
Hypothesis | a2d.1 | |
|
Assertion | a2d | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | a2d.1 | |
|
2 | ax-2 | |
|
3 | 1 2 | syl | |