Theorem b1ne0 ≪ | index | src | ≫

theorem b1ne0 (n: nat): $ b1 n != 0 $;
StepHypRefExpression
1 peano1
suc (b0 n) != 0
2 1 conv b1
b1 n != 0

Axiom use

axs_peano (peano1)