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Mirrors > Home > ILE Home > Th. List > wss | Unicode version |
Description: Extend wff notation to include the subclass relation. This is read " is a subclass of " or " includes ." When exists as a set, it is also read " is a subset of ." |
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cA | |
cB |
Ref | Expression |
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wss |
Colors of variables: wff set class |
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