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theorem proved term proof

charge_zero_unconditional

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formal statement (Lean)

  58theorem charge_zero_unconditional (ps : PhysicalSensor) :
  59    ps.val.charge = 0 :=

proof body

Term-mode proof.

  60  physical_sensor_charge_zero ps
  61
  62/-- No sensor with nonzero charge can physically exist.
  63Contrapositive of the dichotomy. -/

depends on (7)

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