1.1 --- a/src/HOL/Library/Nat_Infinity.thy	Wed Apr 14 13:28:46 2004 +0200
     1.2 +++ b/src/HOL/Library/Nat_Infinity.thy	Wed Apr 14 14:13:05 2004 +0200
     1.3 @@ -30,6 +30,9 @@
     1.4  syntax (xsymbols)
     1.5    Infty :: inat    ("\<infinity>")
     1.6  
     1.7 +syntax (HTML output)
     1.8 +  Infty :: inat    ("\<infinity>")
     1.9 +
    1.10  defs
    1.11    Zero_inat_def: "0 == Fin 0"
    1.12    iSuc_def: "iSuc i == case i of Fin n  => Fin (Suc n) | \<infinity> => \<infinity>"