English Language & Usage Stack Exchange is a question and answer site for linguists, etymologists, and serious English language enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Possible Duplicate:
Are there rules about using “that” to join two clauses?

In mathematical parlance it is customary to write, for example, "One wishes to prove that the following is true." Is the word "that" in the preceding sentence superfluous or necessary and correct?

share|improve this question

marked as duplicate by RegDwigнt Oct 18 '11 at 18:16

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

up vote 2 down vote accepted

The word that in your example is not necessary for clarity. In fact, you could shorten the statement to:

One wishes to prove the following:

The omitted that and ending is true will be assumed by the reader.

share|improve this answer
Or even, "One wishes to prove:" followed by the thing to be proved. – Charles Oct 18 '11 at 17:05
@Charles If this was a test question or textbook problem, it could be further shortened to just "Prove:"! – jimreed Oct 18 '11 at 17:20

Not the answer you're looking for? Browse other questions tagged or ask your own question.