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Commit 2022-07-14 17:53 0bea64b5

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feat(ring_theory/integrally_closed): if x is in Frac R such that x^n is in R then x is in R (#12812)

Estimated changes

Modified src/ring_theory/integral_closure.lean

added theorem is_integral.pow_iff

added theorem is_integral_of_pow

Modified src/ring_theory/integrally_closed.lean

added theorem is_integrally_closed.exists_algebra_map_eq_of_is_integral_pow

added theorem is_integrally_closed.exists_algebra_map_eq_of_pow_mem_subalgebra

modified theorem is_integrally_closed.is_integral_iff