Study logic

logic

there are common rules of logic.

   1  true & false
   2  true theory's reason = true theory
   3  certification = logical tie
   4  logical tie = circle shape
   5  common truth ≠ uncertain information in public

common truth, more stable to remain in public, when info overwritten.

   when info overwritten
   1 time paradox
   2 2 world string merges

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   1  and, or, in our certification 
   2  all theory, connect together, with logical tie