130def TimeTranslation : OneParamGroup ℝ where 131 flow t x := x + t
proof body
Definition body.
132 flow_zero x := by ring 133 flow_add s t x := by ring 134 135/-- **THEOREM**: Any time-translation-invariant function is conserved. 136 (Energy is time-translation invariant ⟹ Energy is conserved) -/
used by (1)
From the project-wide theorem graph. These declarations reference this one in their body.