(5steps total)
PrintForm
Definitions
Lemmas
DiscreteMath
Sections
DiscrMathExt
Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
exp
exp
reduce1
1
1
1.
a
:
2.
b
:
3.
c
:
(
c
(
a
b
)) ~
((
c
b
)
a
)
By:
2 Times (Rewrite
by
Thm*
a
,
b
:
. (
a
b
) ~
(
b
a
) ...w
)
Generated subgoal:
1
(
(
a
b
)
c
) ~ (
a
b
c
)
2
steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
(5steps total)
PrintForm
Definitions
Lemmas
DiscreteMath
Sections
DiscrMathExt
Doc
(c
(a
b)) ~ ((cb)a)
(c(ab)) ~ ((cb)a)
by Thm* 
a,b:. (a
b) ~ (ba) ...w) ((ab)c) ~ (abc)
