--- a/src/Pure/term_xml.scala Tue Apr 21 22:04:15 2020 +0200
+++ b/src/Pure/term_xml.scala Tue Apr 21 22:19:59 2020 +0200
@@ -95,7 +95,7 @@
{ case (Nil, a) => val (b, c) = pair(proof, proof)(a); AppP(b, c) },
{ case (Nil, a) => Hyp(term(a)) },
{ case (List(a), b) => PAxm(a, list(typ)(b)) },
- { case (List(a), b) => OfClass(typ(b), a) },
+ { case (List(a), b) => PClass(typ(b), a) },
{ case (List(a), b) => val (c, d) = pair(term, list(typ))(b); Oracle(a, c, d) },
{ case (List(a, b, c), d) => PThm(long_atom(a), b, c, list(typ)(d)) }))
proof