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ordered pair Quiz

EN
    Choose the most appropriate answer for each question.
  • Question 1 :
  • If an ____________ were defined (in terms of sets) as then the "first element" of an ____________ S could be defined as CAR(S) where CAR(S) = x if and only if . Likewise, the "second element" of S could be defined as CDR(S) where CDR(S) = x if and only if . If the two elements happened to be equal, then the ____________ would still have cardinality two as would be naturally expected.
    1. ordered pairs
    2. ordered pair
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  1. en ordered pairs
Source: Wiktionary
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Definiteness: Level 1
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