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6. Write denotational semantics for Boolean expressions defined in the following grammar: bool : TRUE | FALSE | var | boolExpr boolExpr : leftExpr bop

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6. Write denotational semantics for Boolean expressions defined in the following grammar: bool : TRUE | FALSE | var | boolExpr boolExpr : leftExpr bop rightExpr | NOT leftExpr leftExpr : TRUE FALSE | var rightExpr : TRUE | FALSE | var bop : AND | OR You can assume that a VARMAP function is available that will contain boolean values for boolean variables. If variables have value undef the denotational semantics should return error

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