truar (plural truars)
- One who always tells the truth.
- 1980, David H. Ahl, Computers in Mathematics: A Sourcebook of Ideas, page 42:
- The third person is either an Anania (liar) or a Diogene (truar).
- 2012, Wayne A. Wickelgren, How to Solve Mathematical Problems, →ISBN:
- From this information, can you determine how many of the three are liars and how many are truars?
- 2013 -, David Gries & Fred B. Schneider, A Logical Approach to Discrete Math, →ISBN, page 106:
- The country of Marr is inhabited by two types of people: liars always lie and truars always tell the truth —sounds like a knight-knave problem, eh?
This term is used almost exclusively for logic puzzles.