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GIF version
Syntax Definition
wceq
1091
Description:
Extend wff definition to include class equality.
Hypotheses
Ref
Expression
cA
class
A
cB
class
B
Assertion
Ref
Expression
wceq
wff
A
=
B
See definition
df-cleq
1097
for more information.
Colors of variables:
wff
set
class
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