Nuprl Lemma : inl_equal
11,40
postcript
pdf
A
,
B
:Type,
x
,
y
:
A
. ((inl
x
) = (inl
y
)
(
A
+
B
))
(
x
=
y
)
latex
Definitions
x
:
A
.
B
(
x
)
,
P
Q
,
t
T
,
origin
A, B:Type, x, y:A. ((inl x ) = (inl y ) 
(A + B)) 
(x = y) A, B:Type, x, y:A. ((inl x ) = (inl y ) (A + B)) (x = y) x:A. B(x) Q T