Item:Q1399: Difference between revisions
Created a new Item: Gδ set, countable intersection of open sets |
Created claim: subclass of (P1): subset (Q780) |
||
| Property / subclass of | |||
| Property / subclass of: subset / rank | |||
Normal rank | |||
Created a new Item: Gδ set, countable intersection of open sets |
Created claim: subclass of (P1): subset (Q780) |
||
| Property / subclass of | |||
| Property / subclass of: subset / rank | |||
Normal rank | |||