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Definitions
sat
lemmas
Sections
ClassicalProps(jlc)
Doc
At:
formula
imp
sat
lemma
1
2
2
1
1
1
1.
a:
Assignment
2.
q:
Formula
3.
r:
Formula
4.
(r under a) = 3
5.
x:
6.
(q under a) = x
x
(r under a) = 3
By:
HypSubst -3 0
Generated subgoal:
1
x
3
= 3
About:
x 
(r under a) = 3