
A note on coherence of dcpos - School of Computer Science
... Lemma 3.1. Let L be a well-filtered dcpo. Then L is coherent if and only if ↑x ∩ ↑y is compact for all x, y ∈ L. Proof. If L is coherent, it is obvious that ↑x ∩ ↑y is compact for all x, y ∈ L, since ↑x, ↑y are compact saturated. For the reverse, suppose ↑x ∩ ↑y is compact for all x, y ∈ L. We proce ...
... Lemma 3.1. Let L be a well-filtered dcpo. Then L is coherent if and only if ↑x ∩ ↑y is compact for all x, y ∈ L. Proof. If L is coherent, it is obvious that ↑x ∩ ↑y is compact for all x, y ∈ L, since ↑x, ↑y are compact saturated. For the reverse, suppose ↑x ∩ ↑y is compact for all x, y ∈ L. We proce ...
TN Geometry Traditional Pacing Guide 2017-18
... geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs). Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch). Given a rectangle, parallelogram, trapezoid ...
... geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs). Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch). Given a rectangle, parallelogram, trapezoid ...
BAIRE`S THEOREM AND ITS APPLICATIONS The completeness of
... It follows from theorem conditions and the linearity of Ω that the image of every open ball in X, with center x0 , say, contains an open ball in Y with center at Ωx0 . Hence the image of every open set is open. This explain the name of the theorem. Proof. Given y ∈ Y, there exists an x ∈ X such that ...
... It follows from theorem conditions and the linearity of Ω that the image of every open ball in X, with center x0 , say, contains an open ball in Y with center at Ωx0 . Hence the image of every open set is open. This explain the name of the theorem. Proof. Given y ∈ Y, there exists an x ∈ X such that ...