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. |

IT CAN EASILY BE SHOWN | Even you, in your finite wisdom, should be able to prove this without me holding your hand. |

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. |

BRUTE FORCE (AND IGNORANCE) | Four special cases, three counting arguments, two long inductions, "and a partridge in a pair tree." |

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. |

TFAE (The Following Are Equivalent) | If I say this it means that, and if I say that it means the other thing, and if I say the other thing... |

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 (Popular in applied math courses). |

PROOF OMITTED | Trust me, It's true. |