Math 308 Lecture 2 - More on sets and the beginning of Logic!

(Description coming soon!)

[mattcline]

I wish I had found your channel earlier in the semester! I watched the equivalence relations video--super helpful. My prof isn't unusually bad or anything, but she goes so fast that it's difficult for me to both absorb the material while also writing it down in my notes. Also, "make it sound mathy" is a great phrase haha.

[josejimenez]

Do you have any videos on topology. I like your teaching style.

[abdelrhman]

34:30 why it equals to N and 35:42 equals to A_n

[UnforsakenXII]

1:13:17 How do we know whether or not something the exact opposite of a statement? i.e. I recall reading in an introductory topology book that just because a set is not open that it does not necessarily imply that the set is closed and then they introduced something called a clopen set.

Like in the statement that you used that the integer 3 is prime, would the negation be invalid if you said the integer 3 is composite instead of not prime? wait what.

Oh, the comment below is ironic, lol. You should obtain your PhD so your ultimate theorem is released.