theorem
proved
cos_satisfies_regularity
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IndisputableMonolith.Measurement.RecognitionAngle.AngleFunctionalEquation on GitHub at line 365.
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362 simp [Real.cos_zero]
363
364/-- cos satisfies standard regularity. -/
365theorem cos_satisfies_regularity : AngleStandardRegularity Real.cos where
366 smooth := cos_dAlembert_smooth
367 ode := cos_dAlembert_to_ODE
368 cont := cos_satisfies_continuous_neg
369 diff := cos_satisfies_differentiable_neg
370 boot := cos_satisfies_bootstrap_neg
371
372end AngleFunctionalEquation
373end RecognitionAngle
374end Measurement
375end IndisputableMonolith