===== Arithmetic structure of integers ===== ==== Set ==== | @#FFBB00: definiendum | @#FFBB00: $\langle \mathbb Z,+_\mathbb{Z},\cdot_\mathbb{Z} \rangle$ | | @#55EE55: postulate | @#55EE55: $[\langle a,b\rangle]+_\mathbb{Z}[\langle m,n\rangle]=[\langle a+m,b+n\rangle]$ | | @#55EE55: postulate | @#55EE55: $[\langle a,b\rangle]\cdot_\mathbb{Z}[\langle m,n\rangle]=[\langle a\ m+b\ n,a\ n+b\ m\rangle]$ | The operations $+$ and $\cdot$ on the right hand sides are these of [[arithmetic structure of natural numbers]]. ==== Discussion ==== We'll generally use the notation introduced in [[integer]]. We'll also often omit the multiplication sign. === Reference === Wikipedia: [[http://en.wikipedia.org/wiki/Integer|Integer]] ==== Parents ==== === Context === [[Integer]] === Element of === [[Unital ring]]