words often confused with truism
Note, however, that truism is used in a technical sense in mathematics or philosophy for restating something that is already known from its terms or premises. Examples of such truisms include: “Men are not women” and “Since the circumference of a circle equals twice the radius multiplied by π (2π r ), it equals the diameter multiplied by π (π d ).”
OTHER WORDS FROM truismtru·is·tic, tru·is·ti·cal, adjective
WORDS THAT MAY BE CONFUSED WITH truismtruism , truth (see confusables note at the current entry)
How to use truism in a sentence
A truism among epidemiologists is that herd immunity from a more transmissible virus requires a higher percentage of immunized people.Coronavirus mutations add urgency to vaccination effort as experts warn of long battle ahead|Joel Achenbach, Ariana Eunjung Cha|January 30, 2021|Washington Post
But this sense is as truistic as that of the not dissimilar saying that every event has a cause.
The fallacy consists in transforming the (truistic) fact of acting as a self into the fiction of acting always for self.
Meaning exists for some self, but this truistic fact doesn't fix the quality of any particular meaning.