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 = ( v e. _V |-> |^| ( mzPolyCld ` v ) )

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmzp
 |-  mzPoly
1 vv
 |-  v
2 cvv
 |-  _V
3 cmzpcl
 |-  mzPolyCld
4 1 cv
 |-  v
5 4 3 cfv
 |-  ( mzPolyCld ` v )
6 5 cint
 |-  |^| ( mzPolyCld ` v )
7 1 2 6 cmpt
 |-  ( v e. _V |-> |^| ( mzPolyCld ` v ) )
8 0 7 wceq
 |-  mzPoly = ( v e. _V |-> |^| ( mzPolyCld ` v ) )