Annulus #
In this file we define an annulus in a pseudometric space X to be a set consisting of all y
such that dist x y lies in an interval between r and R. An annulus is defined for each type
of interval (Ioo, Ioc, etc.) with a parallel naming scheme, except that we do not define annuli
for Iio and Iic, as they would be balls.
We also define EAnnulus similarly using edist instead of dist.
Upstreaming status: ready; two style questions should be answered in the process (see below).
Tags #
annulus, eannulus
Annulus #
Instances For
Instances For
Instances For
Instances For
Instances For
Instances For
Union formula for Set.Annulus.co x (f i) (f (Order.succ i)) over i ∈ Ici a. See also
iUnion_co_map_succ_eq_ci for the specialization a = ⊥.
Union formula for Set.Annulus.oc x (f i) (f (Order.succ i)) over i ∈ Ici a. See also
iUnion_oc_map_succ_eq_oi for the specialization a = ⊥.
Special case a = ⊥ of biUnion_Ici_co_map_succ.
Special case a = ⊥ of biUnion_Ici_oc_map_succ.