Every operation casts an arithmetic shadow: a simple value rewritten as a tangle of boolean and arithmetic ops that computes the same thing. Each identity is shown three ways: the worked numbers (verified live against your A and B), and the representative x86-64 it compiles to: clean versus obfuscated. The assembly is illustrative Intel syntax, not any specific toolchain; real samples pile junk and padding on top. The skill is reading past the expansion to the simple operation underneath.