A general contractor.

plural of prime ideal

(algebra, ring theory) Any (two-sided) ideal I such that for arbitrary ideals P and Q, PQ⊆I⟹P⊆I or Q⊆I.

plural of prime ring

(algebra, ring theory) Any nonzero ring R such that for any two (two-sided) ideals P and Q in R, the product PQ = 0 (the zero ideal) if and only if P = 0 or Q = 0.

(algebra, field theory) A field that contains no proper subfields.

plural of prime field

The cost of production, without regard to profit.

plural of prime meridian

(mathematics) Any Eisenstein integer that is prime.