It is noteworthy to me that "Euclid"--a name mis-attributed to a Greek, but whose ancient Egyptian megalithic proofs predate Greece by thousands of years-- proves all propositions in the book "Element's" 13 books, using each proposition as infrastructure in geometry from the least to the greatest.."Prove all things," says 1 Thess. 5:21. "hold fast to that which is good"