Theorem b1eq ≪ | index | src | ≫

theorem b1eq (_n1 _n2: nat): $ _n1 = _n2 -> b1 _n1 = b1 _n2 $;

Step	Hyp	Ref	Expression
1		id	_n1 = _n2 -> _n1 = _n2
2	1	b1eqd	_n1 = _n2 -> b1 _n1 = b1 _n2

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp), axs_peano (peano2, addeq)