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ALGEBRAIC CLOSURE WITHOUT CHOICE
Author(s) -
Banaschewski Bernhard
Publication year - 1992
Publication title -
mathematical logic quarterly
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.473
H-Index - 28
eISSN - 1521-3870
pISSN - 0942-5616
DOI - 10.1002/malq.19920380136
Subject(s) - ultrafilter , algebraic closure , mathematics , closure (psychology) , algebraic number , uniqueness , field (mathematics) , discrete mathematics , pure mathematics , mathematical analysis , differential algebraic equation , ordinary differential equation , differential equation , economics , market economy
This note shows that for the proof of the existence and uniqueness of the algebraic closure of a field one needs only the Boolean Ultrafilter Theorem.
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