English
If m ≤ n, then contDiffGroupoid n I ≤ contDiffGroupoid m I (more regularity implies inclusion).
Русский
Если m ≤ n, тогда contDiffGroupoid n I включается в contDiffGroupoid m I (более высокая гладкость включает меньшую).
LaTeX
$$$contDiffGroupoid n I \leq contDiffGroupoid m I$ when $m \le n$$$
Lean4
/-- Inclusion of the groupoid of `C^n` local diffeos in the groupoid of `C^m` local diffeos when
`m ≤ n` -/
theorem contDiffGroupoid_le (h : m ≤ n) : contDiffGroupoid n I ≤ contDiffGroupoid m I :=
by
rw [contDiffGroupoid, contDiffGroupoid]
apply groupoid_of_pregroupoid_le
intro f s hfs
exact ContDiffOn.of_le hfs h