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PavelZaytsev/Associativity.scala

Created December 2, 2018 00:06
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Associativity.scala
def f1[A, B]: A => B
def f2[B, C]: B => C
def f3[C, D]: C => D
f1 compose(f2 compose f3) === (f1 compose f2) compose f3 === f1 compose f2 compose f3
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