from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The branch of logic dealing with truth and error.
from the GNU version of the Collaborative International Dictionary of English
- n. The science which treats of the nature of truth and evidence.
from The Century Dictionary and Cyclopedia
- n. A term used by Sir William Hamilton to denote that part of logic which treats of the nature of truth and error, and of the rules for their discrimination.
From Ancient Greek ἀλήθεια (alētheia, "truth") + -λογία (-logia). (Wiktionary)