HTTP/2 200 date: Sat, 11 Oct 2025 02:44:38 GMT content-type: application/xml content-length: 996 cf-ray: 98cb0446aaf9f473-BLR last-modified: Tue, 24 Oct 2000 11:53:36 GMT etag: "1229-37461d21e9000-gzip" cache-control: max-age=7776000 expires: Fri, 09 Jan 2026 02:44:38 GMT vary: Accept-Encoding content-encoding: gzip x-backend: www-mirrors x-request-id: 98cb0446aaf9f473 strict-transport-security: max-age=15552000; includeSubdomains; preload content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests cf-cache-status: MISS accept-ranges: bytes set-cookie: __cf_bm=XdudclpszE.KzSz2fBohyCVGkbyzRrZ2N3JIT8Dh2oA-1760150678-1.0.1.1-vrBTXzRdcDXD.0G.AkptgpIqy3.4OzxEW9JGkbgr6RyT7LSOLfECDyjKzUe1f2NO238q5DW_kh20P.jcvah4KS9kr2PwG50EhzNxTtCLJn8; path=/; expires=Sat, 11-Oct-25 03:14:38 GMT; domain=.w3.org; HttpOnly; Secure; SameSite=None server: cloudflare alt-svc: h3=":443"; ma=86400 Note this schema is NOT a normative schema - - It contains types derived from all the builtin simple type definitions with the same local name but in a distinct namespace, for use by applications which do no wish to import the full XMLSchema schema. Since derivation is not symmetric, unexpected results may follow from mixing references to these definitions with references to the definitions in the XMLSchema namespace. For example, although dt:positiveInteger is derived from xs:integer, the converse does not hold.