Theorem emr ≪ | index | src | ≫

theorem emr (p: wff): $ ~p \/ p $;

Step	Hyp	Ref	Expression
1		orcom	p \/ ~p -> ~p \/ p
2		em	p \/ ~p
3	1, 2	ax_mp	~p \/ p

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp)