Pi features several references to mathematics and mathematical theories.
The other strand starts from research in meta-mathematics: what can mathematical theories say about themselves by encoding interesting properties?
Field provides an account of the application of mathematics that does not require the truth of mathematical theories.
They are working tools not elegant mathematical theories; it is very hard to explore them mathematically.
Now Frege, himself, ironically, had revolutionised mathematics by introducing hitherto unprecedented standards of rigour in the formalisation of mathematical theories.
B6 Iannis Xenakis A composer who used scientific and mathematical theories, he was 78.
Thomas Bayes was an 18th century priest whose mathematical theories have important implications in modern science.
We can write mathematical theories that are not the right theory of nature geometry, for example.
"Their mathematical theories might be beautiful and consistent and might seem to explain the nature of the universe -- and be utterly wrong.
I come from fairly pure theory and mathematical theories – so my background is very much that of someone who is trained to pose and solve puzzles.
Unlike American patent law, Brazilian patent law does not allow patents for inventions based on laws of nature or biological material, mathematical theories or works of art.
