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Axiom ax-simpr 21
Description: Extract an assumption from the context. (Contributed by Mario Carneiro, 8-Oct-2014.)
Hypotheses
Ref Expression
ax-simpl.1 R:∗
ax-simpl.2 S:∗
Assertion
Ref Expression
ax-simpr (R, S)⊧S

Detailed syntax breakdown of Axiom ax-simpr
StepHypRef Expression
1 tr . . 3 term R
2 ts . . 3 term S
31, 2kct 10 . 2 term (R, S)
43, 2wffMMJ2 11 1 wff (R, S)⊧S
Colors of variables: type var term
This axiom is referenced by:  simpr  23
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