Step of Proof: minus_functionality_wrt_le
12,41
postcript
pdf
Inference at
*
1
1
I
of proof for Lemma
minus
functionality
wrt
le
:
1.
i
:
2.
j
:
3.
j
i
(-
i
)
(-
j
)
latex
by (RA ((Assert (-(
i
+
j
))
(-(
i
+
j
)))
CollapseTHENM (
C
FwdThruLemma `add_functionality_wrt_le` [3;-1]))
)
latex
C
.
Definitions
t
T
,
False
,
P
Q
,
A
,
A
B
,
x
:
A
.
B
(
x
)
Lemmas
add
functionality
wrt
le
origin