Make change @ktorz suggested
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@ -183,14 +183,13 @@ fn lambda_reducer(term: &mut Term<Name>) {
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body,
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} = func
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{
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if let Term::Constant(c) = arg {
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if !matches!(c.as_ref(), Constant::String(_)) {
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match arg {
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Term::Constant(c) if matches!(c.as_ref(), Constant::String(_)) => (),
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Term::Constant(_) | Term::Var(_) | Term::Builtin(_) => {
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let body = Rc::make_mut(body);
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*term = substitute_term(body, parameter_name.clone(), arg);
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}
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} else if let Term::Var(_) | Term::Builtin(_) = arg {
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let body = Rc::make_mut(body);
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*term = substitute_term(body, parameter_name.clone(), arg);
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_ => (),
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}
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}
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}
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