in reply to Re: Strange given/when deparsingin thread Strange given/when deparsing
Update: Is the following clearer?
It might have been commutative in the past. It might be commutative now. It won't be commutative in the future.
It is always commutative, i.e. $a ~~ $b behaves the same as $b ~~ $a .
Throwing nuclear weapons into the sun
Making everybody on Earth disappear
A threat from an alien with a mighty robot
A new technology or communications medium
Providing a magic fish to a Miss Universe
Establishing a Group mind
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