diff --git a/properties/P000105.md b/properties/P000105.md index 1a873b5a8..585f29173 100644 --- a/properties/P000105.md +++ b/properties/P000105.md @@ -6,7 +6,10 @@ refs: name: Encyclopedia of general topology (Hart et al) --- -Every open cover of the space has a locally countable open refinement. +Every open cover of $X$ has a locally countable open refinement. + +(A collection $\mathscr V$ of subsets of $X$ is *locally countable* +if each $x\in X$ has a neighborhood meeting at most countably many elements of $\mathscr V$.) Defined on page 200 of {{zb:1059.54001}}. diff --git a/theorems/T000587.md b/theorems/T000587.md deleted file mode 100644 index 26025a9c8..000000000 --- a/theorems/T000587.md +++ /dev/null @@ -1,9 +0,0 @@ ---- -uid: T000587 -if: - P000018: true -then: - P000083: true ---- - -Evident from the definitions, as a countable cover is point-countable. diff --git a/theorems/T000654.md b/theorems/T000654.md index dee89ef9b..3eab1c60a 100644 --- a/theorems/T000654.md +++ b/theorems/T000654.md @@ -6,4 +6,4 @@ then: P000105: true --- -Immediate from definitions. +Immediate from the definitions. diff --git a/theorems/T000655.md b/theorems/T000655.md index 26ce117b4..45c40679f 100644 --- a/theorems/T000655.md +++ b/theorems/T000655.md @@ -6,4 +6,4 @@ then: P000083: true --- -Immediate from definitions. +Immediate from the definitions.