Nuprl Lemma : eq_atom_eq_true_elim_sqequal
13,42
postcript
pdf
x
,
y
:Atom. (
x
=a
y
~ tt)
(
x
=
y
)
latex
Up
sqequal
1
,
sqequal
1
Definitions
t
T
,
x
:
A
.
B
(
x
)
,
P
Q
,
,
P
&
Q
,
P
Q
Lemmas
atom
sq
,
btrue
wf
,
assert
of
eq
atom
,
eqtt
to
assert
,
assert
wf
,
bool
wf
,
iff
transitivity
origin
x, y:Atom. (x =a y ~ tt) 
(x = y) x, y:Atom. (x =a y ~ tt) (x = y) 
Tx:A. B(x) Q
Q