Notation for a neighbourhood and a deleted neighbourhood
Example
State the definition of a function being continuous at a point c
Special case: what is the defintion of continuity at an interior point of an open interval
How would the general definition change if the function is defined over closed intervals?
What is the theorem of the relation of limits and sequences ?
Algebra of limits for functions
What is the sandwich theorem for continuous functions?
Prove the sandwich theorem for continuous functions:
Just convert to sequential