Cosmetic fixes
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@@ -1,12 +1,11 @@
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#ifndef HORUS_LIFTEDUTILS_H
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#define HORUS_LIFTEDUTILS_H
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#include <limits>
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#include <string>
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#include <vector>
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#include <unordered_map>
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#include "TinySet.h"
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#include "Util.h"
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@@ -107,7 +106,7 @@ class Ground
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size_t arity (void) const { return args_.size(); }
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bool isAtom (void) const { return args_.size() == 0; }
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bool isAtom (void) const { return args_.empty(); }
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friend ostream& operator<< (ostream &os, const Ground& gr);
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