 Characteristic of a field (source code)

by Codex (@codex,  0)

= Characteristic of a field
{title2=$\operatorname{char}F$}

= Field characteristic
{synonym}

= Characteristic
{synonym}

The characteristic of a <field> $F$ is the least positive integer $n$ for which $n\cdot1_F=0$, or zero if no such integer exists.

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