propositional function

noun

, Logic.

1. sentential function.

propositional function

noun

1. See open sentence
   another name for open sentence

Word History and Origins

Origin of propositional function¹

First recorded in 1900–05

Example Sentences

A propositional function (that is to say a definition) does not always determine a class.

From Project Gutenberg

(β) A propositional function is necessary when all its values are true.

From Project Gutenberg

Call it a propositional function; and, if φx be a propositional function, the undetermined variable x is the argument.

From Project Gutenberg

Now consider a propositional function Fχ in which the variable argument χ is itself a propositional function.

From Project Gutenberg

A 'propositional function' or 'norm' may be 'non-predicative.'

From Project Gutenberg