Basic Predicates - EQ?

• Two expressions are EQ if they evaluate to the same symbols, e.g.,

  • (eq? 'a 'a)
    #T
  • (eq? 2 2)
    #T
  • (eq? 2 2.0)
    #F
  • (eq '(a b) '(a b))
    #F
  • (eq l m) ; after (define l '(a b)) (define m l)
    #T

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