Step of Proof: minus_imax
12,41
postcript
pdf
Inference at
*
I
of proof for Lemma
minus
imax
:
a
,
b
:
. (-imax(
a
;
b
)) = imin(-
a
;-
b
)
latex
by ((Unfolds ``imax imin`` 0)
CollapseTHEN ((Auto_aux (first_nat 1:n) ((first_nat 1:n
C
),(first_nat 3:n)) (first_tok :t) inil_term)))
latex
C
1
:
C1:
1.
a
:
C1:
2.
b
:
C1:
(-if
a
z
b
then
b
else
a
fi ) = if (-
a
)
z -
b
then -
a
else -
b
fi
C
.
Definitions
t
T
,
imin(
a
;
b
)
,
imax(
a
;
b
)
,
x
:
A
.
B
(
x
)
origin