Definition of identical proposition
: a proposition in logic whose subject and predicate are identical in meaning and whose affirmation is therefore superfluous “nothing inconceivable can be conceived” is an identical proposition
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up identical proposition? Please tell us where you read or heard it (including the quote, if possible).