Summary of Operators  209  Boolean  Set  Operator Precedence in Expressions  Other Operations  Assignment  Variable Accessing  Construction  Operator  Operation  Type of Operands  Type of Result  not  negation  Boolean  Boolean  and  conjunction  Boolean  Boolean  or  disjunction  Boolean  Boolean  Operator  Operation  Type of Operands  Type of Result  +  set union  set ofT  set ofT  set difference  set ofT  set ofT  *  set intersection  set ofT  set ofT  Operator  not  * /  div  mod  and  + - or  = <> > <  >= <=  in  Classification  logical negation  multiplying operators  adding operators  relational operators  L]  array indexing  field selection  t  identification  buffer accessing  array  record  pointer  file  component type  field type  domain type  component type  [,]  set construction  ,  ,  string construction  base type  char  set  string  Notation  Operation  Type of Operand  Result Type  assignment  any assignable type  none 