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Cardinality of Multivariate Polynomial Ring #

The main result in this file is mv_polynomial.cardinal_mk_le_max, which says that the cardinality of mv_polynomial σ R is bounded above by the maximum of #R, and ℵ₀.

theorem mv_polynomial.cardinal_mk_eq_lift {σ : Type u} {R : Type v} [comm_semiring R] [is_empty σ] :

The cardinality of the multivariate polynomial ring, mv_polynomial σ R is at most the maximum of #R, and ℵ₀