English

Noun

trivialism ‎(countable and uncountable, plural trivialisms)

1. A trivial matter or method; a triviality.
   • Thomas Carlyle

     When, across the hundredfold poor scepticisms, trivialisms and constitutional cobwebberies of Dryasdust, you catch any glimpse of a William the Conqueror, a Tancred of Hauteville or suchlike, — do you not discern veritably some rude outline of a true God-made King […] ?

2. (logic) The theory that every proposition and its negation is true.
   • 2004, Graham Priest, ‎J. C. Beall, ‎Bradley Armour-Garb, The Law of Non-contradiction: New Philosophical Essays (page 252)

     If it is possible for trivialism to be true, it may be false as well as true that all humans are mammals […]

   • 2008, Peter Baofu, The future of post-human mathematical logic (page 97)

     This charge of trivialism is also called the principle of explosion […]

   • 2012, Koji Tanaka, ‎Francesco Berto, ‎Edwin Mares, Paraconsistency: Logic and Applications (page 296)

     Trivialism is pretty hopeless as a philosophy, although it is very easy to defend/maintain verbally!