PhysicalLight
plain-language theorem explainer
Physical light is identified with the light cone stage inside the Stage inductive type of the pre-temporal forcing order. Researchers tracing electromagnetic emergence after spacetime formation cite this alias when locating the null boundary relative to earlier stages. The definition is a direct alias to the lightCone constructor with no additional computation.
Claim. Define the physical light stage as the light cone stage: $PhysicalLight := Stage.lightCone$, where lightCone marks the null boundary for electromagnetic carriers of spacetime.
background
The module records the forcing order that exists before time in Recognition Science. Stage is the inductive type of dependency stages beginning with distinction, recognitionInterface, singleValuedPredicate, symmetricComparison, compositionConsistency, rcl, jCost, arithmeticObject, timeTick and continuing to spacetime and lightCone. Physical light is distinguished from recognition-light, the latter being the primitive revealing act prior to spacetime while the former is the null boundary downstream of spacetime.
proof idea
The definition is a direct alias that sets PhysicalLight equal to the lightCone constructor of Stage. No lemmas or tactics are invoked beyond the constructor application.
why it matters
This supplies the concrete Stage value required by downstream results including physical_light_after_spacetime (Before Stage.spacetime PhysicalLight), physical_light_not_first, and PreTemporalOrderCert. It fills the module's distinction that physical light is the first boundary of spacetime yet not the first item in the forcing chain, consistent with the pre-temporal order separating recognition-light from electromagnetic carriers.
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