hollight/valid/mathd-algebra-131.ml (8 lines of code) (raw):

let mathd-algebra-131 = `!a:real b:real f:real->real. (!x. f x = &2 * x pow 2 - &7 * x + &2) /\ (f a = &0) /\ (f b = &0) /\ ~(a = b) ==> &1 / (a - &1) + &1 / (b - &1) = -- &1 `;;