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Relation.md (171B)


      1 # Relation
      2 
      3 CH 9.1
      4 
      5 **Definition:** A relation, in math, is a way to describe a connection between elements in the codomain and domain.
      6 
      7 Ex:
      8 
      9 A -> B
     10 
     11 (a,b) in R if a < b.