Nuprl Lemma : strong-subtype-eq3
0,22
postcript
pdf
A
,
B
:Type,
b
:
B
,
a
:
A
. strong-subtype(
A
;
B
)
{
b
=
a
B
b
=
a
A
}
latex
Definitions
{
T
}
Lemmas
strong-subtype-eq2
origin
A, B:Type, b:B, a:A. strong-subtype(A;B) 
{b = a 
B b = a A} A, B:Type, b:B, a:A. strong-subtype(A;B) {b = a B b = a A}