logical.ob 128 B

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  1. MODULE m;
  2. VAR
  3. b1, b2: BOOLEAN;
  4. BEGIN
  5. b1 := TRUE;
  6. b2 := b1 OR b1;
  7. b1 := b1 & b2;
  8. b1 := ~b2;
  9. b1 := b1 & b2 OR ~b1
  10. END m.