 This may be very true, of course, but let such critics look at the collected poems of Teika.There is not a single flat verse to be found among them.Binet–Cauchy identity

In algebra, the Binet–Cauchy identity, named after Jacques Philippe Marie Binet and Augustin-Louis Cauchy, states that

for every choice of real or complex numbers (or more generally, elements of a commutative ring).