OAI/RingTheory/DirectFiniteness/QuotientField.lean
15 declarations, 0 contain sorry, 0 declared as axioms
- def
OAI.KaplanskyCounterexample.Prescription.irreducibleCoeffsline 15 - lemma
OAI.KaplanskyCounterexample.Prescription.irreducibleCoeffs_existsline 18 - def
OAI.KaplanskyCounterexample.Prescription.firstCoeffsline 29 - def
OAI.KaplanskyCounterexample.Prescription.firstPolynomialline 32 - lemma
OAI.KaplanskyCounterexample.Prescription.firstPolynomial_monicline 34 - lemma
OAI.KaplanskyCounterexample.Prescription.firstPolynomial_degreeline 36 - lemma
OAI.KaplanskyCounterexample.Prescription.firstPolynomial_irreducibleline 38 - lemma
OAI.KaplanskyCounterexample.Prescription.firstCoeffs_leline 40 - abbrev
OAI.KaplanskyCounterexample.Prescription.CoefficientFieldline 46Source documentation
Exactly Fâ[Z]/(g), with g the lexicographically first monic irreducible polynomial of the prescribed degree.
abbrev CoefficientField (d : â) (hd : 0 < d) := AdjoinRoot (firstPolynomial d hd)
Mentions: OAI.KaplanskyCounterexample.Prescription.firstPolynomial
- instance
OAI.KaplanskyCounterexample.Prescription.firstPolynomial_factline 48 - instance
OAI.KaplanskyCounterexample.Prescription.coefficientField_finiteline 51 - instance
OAI.KaplanskyCounterexample.Prescription.coefficientField_fintypeline 56 - lemma
OAI.KaplanskyCounterexample.Prescription.coefficientField_finrankline 59 - lemma
OAI.KaplanskyCounterexample.Prescription.coefficientField_cardline 64 - def
OAI.KaplanskyCounterexample.Prescription.coefficientFieldOrderline 68