Words To Help Explain Relationships In The 2010sIn this slideshow, we're breaking down some of the latest slang terms and expressions we're using to talk about dating and relationships in the 2010s.
Origin of propositional function
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for propositional function
another name for open sentence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012