Definition from Wiktionary, the free dictionary
- (logic) Of or pertaining to the various modalities of truth, such as the possibility or impossibility of something being true.
2003, Nicholas Asher and Alex Lascarides, Logics of Conversation, page 46:
- The modal operators □ and ◊ stand for alethic necessity and possibility.
logic: pertaining to the modalities of truth
- alethic at OneLook Dictionary Search