does anyone understand proofs?

Question

anonymous · Answer

What do you need help on?

anonymous · Answer

i just don't get how they work at all,,,

anonymous · Answer

prove theorem 5-1:  if two parallel planes are cut by a third plane, thenn the lines of intersection are parallel

anonymous · Answer

given:  planes CDE and ABF ae parallel.  Plane ABC is a transversal intersecting both planes

anonymous · Answer

I don't know what postulates and axioms you're working from, but here:
We shall say that $l$ is the line of intersection between $ABC$ and $CDE$. 

Proof:
Both lines $l$ and $AB$ are on the plane $ABC$. But, since $l$ is also on plane $CDE$, $AB$ is on $ABF$, and $CDE \;\|\; ABF$, these will never meet. Thus, $AB \;\|\;l$.
Q.E.D.

anonymous · Answer

is there an easy way to make these make sense??

anonymous · Answer

Draw it out and then try to logically reason why it could be the case.

precal · Answer

Math is like music.  We have to learn the basics of each one.  The more you practice it, the easier it becomes.

anonymous · Answer

Also, replacing all of the symbols with actual words or phrases, it helps out, quite a bit, if it all looks daunting at first.

anonymous · Answer

they just don't make sense to me :'(

precal · Answer

you are in good company here but I have learn that talking about it helps.  Just like in music, math also, has its patterns.

anonymous · Answer

music makes sense!

anonymous · Answer

They both do, you just have to learn each one (Trust me, I also play a few instruments, myself).

anonymous · Answer

ok ty