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Metamath Proof Explorer


Theorem flltp1

Description: A basic property of the floor (greatest integer) function. (Contributed by NM, 24-Feb-2005)

Ref Expression
Assertion flltp1 A A < A + 1

Proof

Step Hyp Ref Expression
1 fllelt A A A A < A + 1
2 1 simprd A A < A + 1