| A | B |
| conjecture | educated guess |
| statement | sentence that is true or false |
| conjunction | statement joined with the word "and" |
| disjunction | two statements joined with the word "or" |
| conditional | compund statement using "if...then" |
| biconditional | compound statement using "if and only if..." |
| symbol used to represent "and" | upside down "V" |
| symbol used to represent "or" | "V" |
| symbol used to represent a conditional | arrow |
| symbol used to represent a biconditional | double-arrow |
| hypothesis | located after "if", before "then" (Given) |
| conclusion | located after "then" (Prove) |
| negation | opposite of the original statement (think "NOT") |