Information om | Engelska ordet COFINITE

Exempel på hur man kan använda COFINITE i en mening

• The hyperreal numbers are the ultraproduct of one copy of the real numbers for every natural number, with regard to an ultrafilter over the natural numbers containing all cofinite sets.
• There are five homeomorphism classes of countable Toronto spaces, namely: the discrete topology, the indiscrete topology, the cofinite topology and the upper and lower topologies on the natural numbers.
• In recursion theory, the mathematical theory of computability, a maximal set is a coinfinite recursively enumerable subset A of the natural numbers such that for every further recursively enumerable subset B of the natural numbers, either B is cofinite or B is a finite variant of A or B is not a superset of A.
• Jollifeite's presence may also lead to the finding of other important minerals as it was found in the drill core with chalcopyrite, pyrite, hematite, arsenopyrite, bornite, calcite, dolomite, quartz, cofinite, pitchblende, native gold, native silver, cobaltite, and micas.

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