Metamath Proof Explorer

Theorem exp1d

Description: Value of a complex number raised to the first power. (Contributed by Mario Carneiro, 28-May-2016)

Ref Expression
Hypothesis expcld.1 φ A
Assertion exp1d φ A 1 = A


Step Hyp Ref Expression
1 expcld.1 φ A
2 exp1 A A 1 = A
3 1 2 syl φ A 1 = A