- #1
Math Amateur
Gold Member
MHB
- 3,990
- 48
- TL;DR Summary
- I need help in order to make sense of an Example of Stephen Willard's on the trivial topology and the trivial pseudometric ... I find the example confusing ...
I am reading Stephen Willard: General Topology ... ... and am currently focused on Chapter 1: Set Theory and Metric Spaces and am currently focused on Section 2: Metric Spaces ... ...
I need help in order to fully understand Example 3.2(d) ... .. Example 3.2(d) reads as follows:
and Example 2.7(e) reads as follows:
In Example 3.2(d) we read the following:
" ... It is pseudometrizable since it is the topology generated by the trivial pseudometric on X, by part (e) of Example 2.7. ... ... "I am somewhat lost by this example ...
Can someone please demonstrate that (X, ##\tau## ) is the topology generated by the trivial pseudometric on X ... and explain the relation to part (e) of Example 2.7. ...Help will be much appreciated ...
Peter
I need help in order to fully understand Example 3.2(d) ... .. Example 3.2(d) reads as follows:
" ... It is pseudometrizable since it is the topology generated by the trivial pseudometric on X, by part (e) of Example 2.7. ... ... "I am somewhat lost by this example ...
Can someone please demonstrate that (X, ##\tau## ) is the topology generated by the trivial pseudometric on X ... and explain the relation to part (e) of Example 2.7. ...Help will be much appreciated ...
Peter