Scholium

An old deisel train engine with the number 1687

The scholium is 1. a marginal annotation or comment (as on the text of a classic by an early grammarian), 2. a remark or observation subjoined but not essential to a demonstration or a train of reasoning.

Axioms

Dolphin looks like it's smiling

Axiom (law): a statement or proposition that is regarded as being 1) established, 2) accepted, or 3) self-evidently true. The law in physics is actually same as axiom in mathematics.

Principia Mathematica

Some time ago while studying Newton's Principia Mathematica it struck us that it would be funny and ironic to write a parody called Principia Mattymatica, the Mattymatical principles of natural theology.