Add clarification about verifiability

Author: clehner

index.html

@@ -277,6 +277,15 @@ <h3>What is a Verifiable Credential?</h3>
 using privacy-enhancing technologies, such as zero-knowledge proofs, are also
 provided throughout this document.
         </p>
+
+	<p>
+The word "verifiable" in the terms
+<a>verifiable credential</a> and <a>verifiable presentation</a>
+refers to the characteristic of a <a>credential</a> or <a>presentation</a>
+as being able to be <a>verified</a> by a <a>verifier</a>,
+as defined in this document. Verifiability of a credential does not imply
+that the <a>claims</a> encoded in it are evaluatable for their truth content.
+	</p>
       </section>
 
       <section class="informative">

terms.html

@@ -157,6 +157,8 @@
 is an authentic and timely statement of the issuer or presenter, respectively.  
     This includes checking that: the credential (or presentation) conforms to the specification; the proof method is
 satisfied; and, if present, the status check succeeds.
+Verification of a credential does not imply evaluation of the the truth content
+of <a>claims</a> encoded in the credential.</a>.
 
   </dd>
   <dt><dfn data-lt="verifier|verifiers|verifier's|credential verifiers|credential verifier's">verifier</dfn></dt>