How do combine 2 xPath queries

Question

I am trying to get a list of all element nodes that have a child of <min value="1" /> and do not have a child of <mustSupport value="true" />.

Both of these 2 queries work separately,

//differential/element[child::min[@value='1'] ]

//differential/element[not (child::mustsupport)]

but produce no results when combined.

//differential/element[child::min[@value='1']  and not [child::mustsupport] ]

Answer 1

Not sure if it's a typo, but you have [ ] instead of ( ) on your not.

Also, xpath is case sensitive.

Lastly, the child:: axis is not necessary (although it's fine if it makes it easier to understand).

Try this...

//differential/element[min[@value='1'] and not(mustSupport[@value='true'])]