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The 18th-Century philosopher Adam Smith attempted to systematize the rules that govern а rational system of taxation, didn't he?

Who attempted to systematize the rules that govern а rational system of taxation?

Did the 18th-Century philosopher Adam Smith attempt to systematize the rules that govern а rational system of taxation?

Did the 18th-Century or the 19th century philosopher Adam Smith attempt to systematize the rules that govern а rational system of taxation?

What did the 18th-Century philosopher Adam Smith attempt to systematize?

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