I need to prove the implication,
I know that but how can I use that in a formal proof?
Also I need to show that
Once again all I can think of is the thing I wrote above. Thank you!
note that an alternate definition for is . also note that the square root function is a strictly increasing function, that is, for positive and , .
Now, to prove our implication, we can use the contrapositive: assume , then we have . But that means .
in light of what i did before, try this oneAlso I need to show that
Once again all I can think of is the thing I wrote above. Thank you!