Theorem syl5eqsr ≪ | index | src | ≫

theorem syl5eqsr (A B C: set) (G: wff):
  $ B == A $ >
  $ G -> B == C $ >
  $ G -> A == C $;

Step	Hyp	Ref	Expression
1		hyp h1	B == A
2	1	a1i	G -> B == A
3		hyp h2	G -> B == C
4	2, 3	eqstr3d	G -> A == C

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp), axs_pred_calc (ax_gen, ax_4)