Step of Proof: ax_choice
12,41
postcript
pdf
Inference at
*
1
1
1
1
1
I
of proof for Lemma
ax
choice
:
1.
A
: Type
2.
B
: Type
3.
Q
:
A
B
4.
g
:
x
:
A
y
:
B
Q
(
x
,
y
)
5.
x
:
A
6.
y1
:
B
7.
y2
:
Q
(
x
,
y1
)
8. <
y1
,
y2
> =
g
(
x
)
Q
(
x
,(
g
(
x
)).1)
latex
by ((RevHypSubst 8 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:
Q
(
x
,<
y1
,
y2
>.1)
C
.
Definitions
x
.
t
(
x
)
,
t
T
,
x
(
s1
,
s2
)
,
,
x
(
s
)
,
x
:
A
.
B
(
x
)
Lemmas
pi1
wf
origin