**CLEARLY:**

I don't want to write down all the "in- between" steps.

**TRIVIAL:**

If I have to show you how to do this, you're in the wrong class.

**OBVIOUSLY:**

I hope you weren't sleeping when we discussed this earlier, because I refuse to repeat it.

**RECALL:**

I shouldn't have to tell you this, but for those of you who erase your memory tapes after every test...

**WLOG (Without Loss Of Generality):**

I'm not about to do all the possible cases, so I'll do one and let you figure out the rest.

**CHECK or CHECK FOR YOURSELF:**

This is the boring part of the proof, so you can do it on your own time.

**SKETCH OF A PROOF:**

I couldn't verify all the details, so I'll break it down into the parts I couldn't prove.

**HINT:**

The hardest of several possible ways to do a proof.

**SOFT PROOF:**

One third less filling (of the page) than your regular proof, but it requires two extra years of course work just to understand the terms.

**ELEGANT PROOF:**

Requires no previous knowledge of the subject matter and is less than ten lines long.

**SIMILARLY:**

At least one line of the proof of this case is the same as before.

**CANONICAL FORM:**

4 out of 5 mathematicians surveyed recommended this as the final form for their students who choose to finish.

**BY A PREVIOUS THEOREM:**

I don't remember how it goes (come to think of it I'm not really sure we did this at all), but if I stated it right (or at all), then the rest of this follows.

**TWO LINE PROOF:**

I'll leave out everything but the conclusion, you can't question 'em if you can't see 'em.

**BRIEFLY:**

I'm running out of time, so I'll just write and talk faster.

**LET'S TALK THROUGH IT:**

I don't want to write it on the board lest I make a mistake.

**PROCEED FORMALLY:**

Manipulate symbols by the rules without any hint of their true meaning (popular in pure math courses).

**QUANTIFY:**

I can't find anything wrong with your proof except that it won't work if x is a moon of Jupiter.

**PROOF OMITTED:**

Trust me, It's true.