Update Filter Evaluation language to reference more functional forms. (#117)

* Update Filter Evaluation language to reference more functional forms.

* Update spec/index.html

Add logical-or and logical-and to description.

Co-authored-by: Andy Seaborne <[email protected]>

* Update spec/index.html

Change "all functions and operators operate over RDF Terms" to "all functions operate over RDF Terms" in description of filter evaluation.

Co-authored-by: Andy Seaborne <[email protected]>

* Add comma in list of functional forms

Co-authored-by: Ted Thibodeau Jr <[email protected]>

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Co-authored-by: Andy Seaborne <[email protected]>
Co-authored-by: Ted Thibodeau Jr <[email protected]>

Author: 3 people

spec/index.html

@@ -4741,9 +4741,13 @@ <h3>Filter Evaluation</h3>
             "xsd:boolean (EBV)" in the operator mapping table below), are coerced to
             <code>xsd:boolean</code> using the <a href="#ebv">EBV rules</a> in section 17.2.2.
           </li>
-          <li>Apart from <a href="#func-bound">BOUND</a>, <a href="#func-coalesce">COALESCE</a>,
-            <a href="#func-filter-exists">NOT EXISTS</a> and <a href="#func-filter-exists">EXISTS</a>,
-            all functions and operators operate on RDF Terms and will produce a type error if any
+          <li>Apart from the <a href="#func-forms">functional forms</a>
+            <a href="#func-bound">BOUND</a>, <a href="#func-coalesce">COALESCE</a>,
+            <a href="#func-if">IF</a>, <a href="#func-in">IN</a>, <a href="#func-not-in">NOT IN</a>, 
+            <a href="#func-logical-or">logical-or</a> (<code>||</code>),
+            <a href="#func-logical-and">logical-and</a> (<code>&amp;&</code>),
+            <a href="#func-filter-exists">NOT EXISTS</a>, and <a href="#func-filter-exists">EXISTS</a>,
+            all functions operate on RDF Terms and will produce a type error if any
             arguments are unbound.
           </li>
           <li>Any expression other than <a href="#func-logical-or">logical-or</a> (<code>||</code>)