Complex sentence: In mathematics, a unifying conjecture is a claim that one branch of mathematics is isomorphic to another, thus, a calculation in one branch that is difficult may be translated into the other branch and become easier to perform.
Split into simpler sentences: In mathematics, a unifying conjecture is a claim that one branch of mathematics is isomorphic to another. Thus, a calculation in one branch that is difficult may be translated into the other branch and become easier to perform.