SOLUTION: how do you do proofs?

Question 214292: how do you do proofs?

Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
You start with the 'given'. Usually you are asked, given xyz, show abc
Take a sheet of paper and divide it vertically in half. (Draw a line down the middle top to bottom.
On the left hand side, show each step of the proof. One the right hand side, give the 'reason' you are allowed to make that step. The reason should be a 'math rule' (like distribution, association, some theorem, etc)
Start at the first line and state what was given on the left side. State "Given" on the right side.
Then, step by step, work from the given to 'what was to be shown (abc in our example above)
For each step on the left side, give a 'math rule' that allows you to make that step on the right side.
When you get to the last line, say QED on the right (what was to be shown).
I know this is too wordy. If you have a specific proof you need to show, you might want to enter than and then see how a solution looks.

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