An Axiom (n.) is self-evident because we have already chosen how to use it; its being found evident matters less than our making the evidence count.
Definition.com
Definition.com
An Axiom (n.) is a different part of speech: we give it a function that conflicts with an empirical proposition's, not a higher probability.
Definition.com
An Axiom (n.) is not an empirical proposition but a principle of judgment, excluded from the language-game of checking by experience.
Definition.com
An Axiom (n.) is a postulate of a form of expression.
Definition.com
Axiom (n.) no more ground logic and mathematics than elements and operations ground a group; their self-evidence is no criterion.
More Ludwig Wittgenstein
.com