- Mort (Wikipedia)
Mort is a fantasy novel by British writer Terry Pratchett. Published in 1987, it is the fourth Discworld novel and the first to focus on the character Death, who only appeared as a side character in the previous novels. The title is the name of its main character, and is also a play on words: in French and Catalan, mort means “death”. The French language edition is titled Mortimer, and the Catalan language edition is titled Morth.
- Associative property (Wikipedia)
In mathematics, the associative property is a property of some binary operations, which means that rearranging the parentheses in an expression will not change the result. In propositional logic, associativity is a valid rule of replacement for expressions in logical proofs.