document.write( "Question 186546: How to know where's the start point of a proof?
\n" ); document.write( "I mean- how to know from where to begin?
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Algebra.Com's Answer #139789 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
Usually, you are given a problem in the form \"show that if blah blah blah, then la di da\"\r
\n" ); document.write( "\n" ); document.write( "So you are given the original startingpoint and the desired end point. You are then expected to go from start to end, step by step, using principles, axioms etc.\r
\n" ); document.write( "\n" ); document.write( "What I prefer is to take a clean sheet of paper, leave little room at the top and draw vertical line down the middle of it. I use the left side to show my mathematial steps. I use the right side to state which principle, axiom, etc allows me to move from that step to the next one.\r
\n" ); document.write( "\n" ); document.write( "At the top of the page restate the problem. Do this 'above the vertical line'. \r
\n" ); document.write( "\n" ); document.write( "The first step is the 'given' part of the problem (the blah blah blah above). Put that on the left side and write 'given' on the right. \r
\n" ); document.write( "\n" ); document.write( "Then proceed step by step toward 'what is to be shown (the la di da above)'. Each step must have a valid principle, axiom, etc to support taking that step. \r
\n" ); document.write( "\n" ); document.write( "When you get to 'la di da', write QED in the right side. (What was to be shown)\r
\n" ); document.write( "\n" ); document.write( "Hope that helps\r
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