Binary Operator Identity

Sourcery refactoring id: bin-op-identity

Description:

Replaces binary operations between a value and itself with known identities:

Changes:

• x | x => x
• x & x => x
• x ^ x => 0
• x - x => 0
• x / x => 1
• x // x => 1
• x % x => 0

Explanation:

These changes simplify the code, making it easier to understand what is going on.