diff --git a/theorems/T000806.md b/theorems/T000806.md new file mode 100644 index 000000000..76d706f00 --- /dev/null +++ b/theorems/T000806.md @@ -0,0 +1,18 @@ +--- +uid: T000806 +if: + and: + - P000019: true + - P000131: true +then: + P000020: true +refs: + - zb: "1126.54010" + name: When is a compact space sequentially compact? (O. Alas, R. Wilson) + - mo: 506776 + name: Proof of Alas and Wilson that countably compact hereditarily Lindelof spaces are sequentially compact +--- + +Established as Corollary 2.2 of Theorem 2.1 in {{zb:1126.54010}} +(available [here](https://topology.nipissingu.ca/tp/reprints/v29/tp29201.pdf)). +Note that the proof of Theorem 2.1 contains errors which need corrections. These are discussed in {{mo:506776}}.