[isabelle] Problem instantiating variables of form ?a1.0



Hello 

I have an (automatically generated; large) rule which has meta variables
of the form  ?a1.0  ?a2.0 .. and I seem to be unable to instantiate
these variables. 

If i try

apply(rule_tac a1.0="..." in my_rule) 

I get a syntax error at the "." and if I try

apply(rule_tac a1="..." in my_rule)

it says that there is no such variable in the theorem. So how does one
instantiate this kind of variables?


-- 
Regards
Christian Doczkal

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