[p1][p2] vs. [p1 and p2]

I think that //e[p1][3] describes the third of the list of "e" elements =
in the document that satisfy [p1]; is this correct?
In other words: 		//e[p1][p2] !=3D //e[p2][p1]

The W3 specification (http://www.w3.org/TR/1999/REC-xpath-19991116) is =
VERY ambiguous about this point: in 2.5 Abbreviated Syntax, it gives =
these examples:
	para[@type=3D"warning"][5] selects the fifth para child of the context =
node that has a type attribute with value warning=20
	para[5][@type=3D"warning"] selects the fifth para child of the context =
node if that child has a type attribute with value warning=20

However in 2 Location Paths, it gives these examples:
	child::para[attribute::type=3D'warning'][position()=3D5] selects the =
fifth para child of the context node that [child] has a type attribute =
with value warning=20
	child::para[position()=3D5][attribute::type=3D"warning"] selects the =
fifth para child of the context node if that child has a type attribute =
with value warning=20

Given the typo in this latter pair of examples, I prefer the first pair. =

Thank you for your attention