"Logic and Proofs

"Logic and Proofs" Please respond to the following:

• What does it mean to prove something in mathematics?  How is this different from in real life?  
• Give an example of something you've had to prove in your own life.  What evidence did you provide to
• support your reasoning? What strategies did you use to prove your case? 
• Find a proof on the internet that you understand.  Show it here and cite the source.  Explain what method of proof the author used and what makes the proof comprehensible to you.    
• no phrasing