Why does >= return false when == returns true for null values?

Question

I have two variables of type int? (or Nullable if you will). I wanted to do a greater-than-or-equal (>=) comparison on the two variables but as it turns out, this

Answer 1

NULL is not zero (numeric or binary value), a zero-length string, or blank (character value). So any comparison operator will always return false on it. Read more about it here

Answer 2

Since by default an int cannot be null and its value will be set to 0, the operator of > and < which is built for int type, expects to work with values and not with nulls.

see my answer to a similar question where I wrote some ways to handle nullable int with the less < and greater > operators https://stackoverflow.com/a/51507612/7003760