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==Mathematical proof==
A mathematical proof is a step-by-step definition of the truth or falsity of a mathematical theorem.
Proofs build on [[axiom | axioms]], which are statements that are assumed to be true without proof,
as well as previously-proved [[theorem | theorems]].
Several types of proofs are widely used, such as [[proof by contradiction | proof by contradiction]]
and [[proof by induction | proof by induction]]. Proofs that rely only on certain simple forms of reasoning
are sometimes called [[elementary proof | elementary proofs]].
[[Andrew Schlafly | Andrew Schlafly]] cited the lack of a Wikipedia page on "elementary proof" as
proof of [[examples of bias in Wikipedia | bias in Wikipedia]]. Ironically, at that time Conservapedia did not even have a page on "proof".