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% test15.4c.ott is_v test
% mutual recursion between a single upper/lower type pair, with dot forms involving tuples
indexvar index , n ::= {{ isa nat }} {{ coq nat }} {{ coq-equality }}
{{ hol num }} {{ ocaml int }}
metavar x ::= {{ isa nat }} {{ coq nat }} {{ coq-equality }}
{{ hol num }} {{ ocaml int }}
grammar
a :: 'a_' ::=
| x :: :: Ax
| AA :: :: AA
| A a :: :: a
| C ( a1 , a'1 , a''1 ) .. ( an , a'n , a''n ) :: :: C
| CC ( a1 , a'1 , a''1 ) .. ( an , a'n , a''n ) :: :: CC
av :: 'av_' ::=
| A a :: :: a
| C ( av1 , av'1 , av''1 ) .. ( avn , av'n , av''n ) :: :: C
| CC ( av1 , av'1 , av''1 ) .. ( avn , av'n , av''n ) :: :: CC
subrules
av <:: a
freevars
a x :: fv
substitutions
single a x :: su
multiple a x :: sum
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