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# geometry note review

### geometry logic review

what is negation? what changes the truth value(~)
what is disjuntion? combing 2 statements using the word or
what is conjunction? combing 2 statements using the word and
what is conditional? a sentence containing if, then
what is biconditional? a sentence using if and only if
what is a truth value? true or false basedon a given statement
logically equivalent is the same as? contrapositive
what is converse? when switch the order or things
what is inverse? when you negate(~) both
what is contrapositive? when you switch and negate both
what does ^ mean? ^ means and or conjunction
what is the sign for or or disjuntion? upside down ^
what does this sign represent ~ ? negation
what does this represent ----> ? if, then statements
what does this represent <---> ? if and only if statements
what are truth tables? they are when you compare two truth values and get another truth value
what are other words to represent ATT? conjunction & and
what are other words to represent OFF? disjunction & or
what are other words to represent tunafish is false? conditional & if, then statements
what are other words to represent BST? biconditional & if and only if
how do you setup a 2 circle venn diagram? draw the 2 circles and label them and in the middle both if they give u a middle number then subtract however much was given on one side by the middle
how do you set up a 3 circle venn diagram this is the same as the 2 circle venn diagram except you draw 3 circles and the ones that touch each other are added into the ones that dont touch
how do you get the percentage? you take the numbers u need and add those then add all the numbers together and divide those numbers then move the decimal places 2 times to the right
how do you solve a logical puzzle? remember the converse, inverse, and contrapositive and there definitions and which order they go in
how do you complete the last comlumnin a truth table? depending what its asking you can star and or circle the columns you need and then use your knownledge of conjunctions disjuntions conditional and biconditional.
Created by: jackiediller