XPAth 2.0/General Comparisons

Hi,

I am trying to better grasp the concept of General Comparisons in XPath 2.0.
The rules listed in 3.5.2 of the recommendation
(http://www.w3.org/TR/xpath20/#id-general-comparisons) would suggest that
the following expression should work;


true() = 10
Should work right? step 1 of section 3.5.2:
"If either operand is a single atomic value that is an instance of
xs:boolean, then the other operand is converted to xs:boolean by taking its
effective boolean value."

The effective boolean value of 10 is true (I get an error cannot compare
xs:Boolean to xs:integer)

10 < '10.2' 
Should work (?) due to step 3 of section 3.5.2:
"If the comparison operator is <, <=, >, or >=, then each item in both of
the operand sequences is converted to the type xs:double by applying the
fn:number function. (Note that fn:number returns the value NaN if its
operand cannot be converted to a number.)"

And number('10.2') is correct, however I get an error Cannot compare
xs:integer to xs:string


I am testing with oXygen 7.2 and have it set to XPath 2.0

What am I missing?

Tx.,

Raphael