Problem 428 (difficulty: 1/10)

Prove that the function \(\displaystyle [x]\) is continuous in \(\displaystyle a\) if \(\displaystyle a\) is not an integer, and left-continuous if \(\displaystyle a\) is an integer.

Give me another random problem!

Subject, section:
Requested difficulty:
Request for a concrete problem:I want problem no.

Supported by the Higher Education Restructuring Fund allocated to ELTE by the Hungarian Government