Category:Axioms/Named Axioms/Playfair

This category contains axioms or axiom schemata named for John Playfair.

Scots mathematician and scientific philosopher who was an early proponent of the philosophical position that physical laws are the same throughout the universe and do not change with time.

Also credited with Playfair's axiom, an alternative (and easier to digest) form of Euclid's Fifth Postulate, although he himself did not originate it.