Step of Proof: dec_iff_ex_bvfun
12,41
postcript
pdf
Inference at
*
2
1
I
of proof for Lemma
dec
iff
ex
bvfun
:
1.
T
: Type
2.
E
:
T
T
3.
f
:
T
T
4.
x
,
y
:
T
. (
(
f
(
x
,
y
)))
(
E
(
x
,
y
))
5.
x
:
T
6.
y
:
T
Dec(
E
(
x
,
y
))
latex
by ((RWO "4<" 0)
CollapseTHENA ((Auto_aux (first_nat 1:n) ((first_nat 1:n),(first_nat 3:n
C
)) (first_tok :t) inil_term)))
latex
C
1
:
C1:
Dec(
(
f
(
x
,
y
)))
C
.
Definitions
P
&
Q
,
t
T
,
P
Q
,
P
Q
,
,
P
Q
,
x
:
A
.
B
(
x
)
Lemmas
assert
wf
,
decidable
functionality
origin