PhysicsLogic / Guth 1981

Radiation Horizon

Inspect one complete causal argument, from its specification to its checked inference.

Definitions and assumptions

Scope and physical limitations

This is flat-radiation radial kinematics, not the whole paper, a complete inflationary history, or a thermalization argument.

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Examples and distinctions

Constructed examples of this model; each answer includes the Lean statement.

Exact root statement

∀ (normalization reception coordinate : ℝ),
  0 < normalization →
    0 < reception →
      (Reachable normalization reception coordinate ↔
        scaleFactor normalization reception * |coordinate| < 2 * reception)
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