File: test16.5.ott

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% test16.5.ott   auxfn and subst test
% single type, single auxfn, with dot form

% ISA FAILS (for the auxfn part already) - I think simply because primrec can't handle the nested pattern 

metavar value_name , x ::=
  {{ isa string }} {{ coq nat }} {{ coq-equality }} {{ hol string }}

indexvar index , n ::= {{ isa nat }} {{ coq nat }} {{ hol num }}

  grammar

    a , aa, aaa :: 'a_' ::= 
      | x           :: :: x  (+ f=x +)
      | A aaa1 .. aaan  :: :: A  (+ f=f(aaa1..aaan) +)  
      | C           :: :: C  (+ f={} +)

substitutions
  single   a value_name :: subst  
  multiple a value_name :: msubst