He was a friend of Mydorge and Descartes, but an opponent of Fermat.
It was issued as a challenge by Fermat to the English mathematicians of his day.
From the time when Pascal and Fermat established its first principles, it has rendered most important daily services.
Fermat's works should be consulted in connection with the early history of this theorem.
His genius in the theory of numbers was probably never excelled except by Fermat.
For purely geometrical questions the only general method available is practically that employed by Fermat.
For the explanation of Fermat one may produce a still stronger testimony, with which he seems not to have been acquainted.
We should say, Fermat went to such a page, Archimedes went a few pages further.
Several other discoveries, both in pure algebra and geometry, illustrate the name of Fermat.
Fermat, more versed in geometry than physics, disputed this theorem which is now quite elementary.