A.6.3:4.4 - Keep optional viewpoint selection and view membership separate

For the current use of receiving episteme Y, name the describing use and exact viewpoint P only when that selection changes what the receiver reads or checks. Keep Y, its EntityOfConcern, the use, and P distinct. Selecting P is outside C.2.1 identity and does not make E.17.0 conformance obtain.

After Y is identified, apply E.17.0 only when the current use needs U.View membership:

EpistemeViewpointConformanceRelation(Y,P) obtains
  -> the same episteme Y is a U.View

Directly authored Y can be a view without any A.6.3 source relation. Conversely, a valid A.6.3 construction can yield Y that fails P’s concern-coverage or semantic-form rules and therefore is not a view under P.