Axiom ax-syl 15

Description: Syllogism inference. (Contributed by Mario Carneiro, 8-Oct-2014.)

Hypotheses

Ref	Expression
ax-syl.1	⊢ R⊧S
ax-syl.2	⊢ S⊧T

Assertion

Ref	Expression
ax-syl	⊢ R⊧T

Detailed syntax breakdown of Axiom ax-syl

Step	Hyp	Ref	Expression
1		tr	. 2 term R
2		tt	. 2 term T
3	1, 2	wffMMJ2 11	1 wff R⊧T

This axiom is used by:  syl  16