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This research was supported by the National Research Council of Canada.
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Lakser, H. Injective completenes of varieties of unary algebras: A remark on a paper of higgs. Algebra Univ. 3, 129 (1973). https://doi.org/10.1007/BF02945111
- Boolean Algebra
- Unary Operation
- Unary Algebra
- Universal Algebra
- Equational Classis