You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

The Church-Turing thesis ( also known as Church 's thesis , Church 's conjecture and Turing 's thesis ) is a statement about computers .
Output:
In computability theory , the Church – Turing thesis ( also known as computability thesis , the Turing – Church thesis , the Church – Turing conjecture , Church 's thesis , Church 's conjecture , and Turing 's thesis ) is a hypothesis about the nature of computable functions .