propositional function


propositional function

noun

Definition of PROPOSITIONAL FUNCTION

2
:  something that is designated or expressed by a sentential function

First Known Use of PROPOSITIONAL FUNCTION

1903

propositional function

noun    (Concise Encyclopedia)

Sentencelike expression that may be thought of as obtained from a sentence by substituting variables for constants occurring in the sentence. For example, “x was a parent of y” may be thought of as obtained from “Adam was a parent of Abel.” A propositional function therefore has no truth-value, becoming true or false only when its free variables are replaced by constants of appropriate syntactic categories (e.g., “Abraham was a parent of Isaac”).

Browse

Next Word in the Dictionary: proposition bet
Previous Word in the Dictionary: propositional calculus
All Words Near: propositional function

Seen & Heard

What made you want to look up propositional function? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More