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4.1.1 Introduction to Booleans
***** NOT YET UPDATED TO CoCoA-5: follow with care *****

The two boolean constants are True and False . They are mainly used with the commands If and While , etc., inside CoCoA programs. The relational operators
    =  <>  <  <=  >  >=
return boolean constants (see Relational Operators). The boolean operators are
    Not  And  Or  IsIn
and return boolean constants and are described below.