Where mathematics come from: how the embodied mind brings mathematics into being, paperback/george lakoff

This book is about mathematical ideas, about what mathematics means-and why.

Abstract ideas, for the most part, arise via conceptual metaphor-metaphorical ideas projecting from the way we function in the everyday physical world.

Where Mathematics Comes From argues that conceptual metaphor plays a central role in mathematical ideas within the cognitive unconscious-from arithmetic and algebra to sets and logic to infinity in all of its forms.