The two earliest mathematical theorems, Thales' theorem and Intercept theorem are attributed to Thales. It is possible to deduce Wilson's theorem from a particular application of the Sylow theorems. This reduction generalizes several fundamental theorems in algebra. Completeness can be checked using the convergence theorems for Lebesgue integrals. These generalizations allow one to extend some of the above theorems to spaces without metrics. What follows is an incomplete list of the most classical theorems in Riemannian geometry. Many theorems and concepts involving graphs also hold for hypergraphs. This gives it a place among the fundamental theorems of topology. These theorems belong to a larger class of duality theorems in optimization. Complete expositions of the convergence theorems discussed here are given in and . Townsend's lyrical influences covered a wide range of themes, including warfare, mathematical theorems, and movies. Some logical connectives possess properties which may be expressed in the theorems containing the connective. There are two fundamental theorems of welfare economics. The following summarizes the major convergence theorems for Ricci flow. Archimedes used exhaustion to prove his theorems.