boolean expression simplification/finding expressions that are always/never true

[Luro02]

What it does

There are strategies to simplify boolean expressions, by

• eliminating redundant variables
• redundant conditions
• detecting conditions that are always true or always false

One could write a check that is able to detect that.
There is nothing like that implemented at the moment, maybe the check that suggests simplifying !(a == b) -> a != b.

Some questions about this:

1. Does this happen frequently enough? I can't remember seeing this in a submission
2. Is it obvious enough that is justifies an annotation that might even subtract points?

Lint Name

No response

Category

No response

Example

<code>

Could be written as:

<code>