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Mirrors > Home > ILE Home > Th. List > wbr | GIF version |
Description: Extend wff notation to include the general binary relation predicate. Note that the syntax is simply three class symbols in a row. Since binary relations are the only possible wff expressions consisting of three class expressions in a row, the syntax is unambiguous. |
Ref | Expression |
---|---|
cA | class A |
cB | class B |
cR | class 𝑅 |
Ref | Expression |
---|---|
wbr | wff A𝑅B |
Colors of variables: wff set class |
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