Proposition: Addition of Integers Is Associative

Addition of integers is associative, i.e. the law \[(x+y)+z=x+(y+z)\] is valid for all \(x,y,z\in\mathbb Z\).

Proofs: 1 2

Motivations: 1
Proofs: 2 3


Thank you to the contributors under CC BY-SA 4.0!

Github:
bookofproofs


References

Bibliography

  1. Kramer Jürg, von Pippich, Anna-Maria: "Von den natürlichen Zahlen zu den Quaternionen", Springer-Spektrum, 2013