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 ∈ V ⟼ ⋂ mzPolyCld ⁡ v

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmzp class mzPoly
1 vv setvar v
2 cvv class V
3 cmzpcl class mzPolyCld
4 1 cv setvar v
5 4 3 cfv class mzPolyCld ⁡ v
6 5 cint class ⋂ mzPolyCld ⁡ v
7 1 2 6 cmpt class v ∈ V ⟼ ⋂ mzPolyCld ⁡ v
8 0 7 wceq wff mzPoly = v ∈ V ⟼ ⋂ mzPolyCld ⁡ v