Metamath Proof Explorer


Definition df-mzp

Description: Polynomials over ZZ with an arbitrary index set, that is, the smallest ring of functions containing all constant functions and all projections. This is almost the most general reasonable definition; to reach full generality, we would need to be able to replace ZZ with an arbitrary (semi)ring (and a coordinate subring), but rings have not been defined yet. (Contributed by Stefan O'Rear, 4-Oct-2014)

Ref Expression
Assertion df-mzp mzPoly=vVmzPolyCldv

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmzp classmzPoly
1 vv setvarv
2 cvv classV
3 cmzpcl classmzPolyCld
4 1 cv setvarv
5 4 3 cfv classmzPolyCldv
6 5 cint classmzPolyCldv
7 1 2 6 cmpt classvVmzPolyCldv
8 0 7 wceq wffmzPoly=vVmzPolyCldv