KnowraInfinite descentLinked fromLinked fromThe 6 pages that link to Infinite descent, each with the reason it gives.All 6Related 5Compared with 1Diophantine equationRelated: It can prove that an equation has no nonzero integer solutions.Fermat's Last TheoremRelated: Fermat used descent to prove the fourth-power case.Fermat's theorem on sums of two squaresRelated: Euler’s proof uses descent to establish the impossibility direction for primes congruent to 3 modulo 4.Fermat's right triangle theoremRelated: Fermat's proof rules out square-area triangles by repeatedly constructing a smaller one.Legendre's three-square theoremRelated: Descent arguments help establish that integers outside the excluded family admit a representation.