Cryptography, Blockchain, Ethereum, Loopring, Learning.
elements): Closed — any operation performed with elements from the set returns an element contained in the original set. Associative — if you have (a· b) ·c, it’s the same as a ·(b ·c) Identity — there exists a neutral element (usually 1) such that a · 1 = a Inverse — within the set there’s another