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The axiom says:
"The interaction between two observations is constrained by causality
[tex]|x-y|^2 <0 \Rightarrow [\phi(x),\phi(y)]=0[/tex]
"
But |x-y|^2<0 is always false that means the if the condition applies then by simple logic the consequnet of the condition can occur or not occur, I don't understand this.
"The interaction between two observations is constrained by causality
[tex]|x-y|^2 <0 \Rightarrow [\phi(x),\phi(y)]=0[/tex]
"
But |x-y|^2<0 is always false that means the if the condition applies then by simple logic the consequnet of the condition can occur or not occur, I don't understand this.