# truar

## Contents

## EnglishEdit

### EtymologyEdit

By analogy to the word *liar* for one who lies.

### NounEdit

**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**).

- The third person is either an Anania (liar) or a Diogene (
**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**?

- From this information, can you determine how many of the three are liars and how many are
**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?

- The country of Marr is inhabited by two types of people: liars always lie and

### Usage notesEdit

This term is used almost exclusively for logic puzzles.