Demonstrated how to go between two points (5)

I believe the answer is:

shown

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'demonstrated' is the definition.
(thesaurus)

'two points' is the wordplay.
'two points' can mean two replacements for 'point'.
'point' becomes 'show' ('show' can be a synonym of 'point'**).
'point' becomes 'n' (N is an example).
'show'+'n'='SHOWN'

'how to go between' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for shown that I've seen before include "Demonstrated" , "Exhibited" , "Explained" , "Displayed" .)

I've seen this clue in the Evening Standard.

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