When i read your note about "or a different convention by bilateral agreement between the parties", i immediately wondered jokingly that if math was "picked up"

When i read your note about "or a different convention by bilateral agreement between the parties", i immediately wondered jokingly that if math was "picked up" by business years ago, it might go somerthing like: 2 + 2 = 4 ...or resulting in a different sum by bilateral agreement between the parties...! lol :-D