Definition:Precisely One Function

From ProofWiki
Jump to navigation Jump to search


Let $p_1, p_2, \ldots, p_n$ be statements.

The precisely one function is the propositional function $\map P {p_1, p_2, \ldots, p_n}$ defined as:

$\map P {p_1, p_2, \ldots, p_n}$ is true if and only if precisely one of $p_1, p_2, \ldots, p_n$ is true.

Also see

  • Results about the precisely one function can be found here.