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  1. Charles E. Hughes & W. E. Singletary (1977). The One-One Equivalence of Some General Combinatorial Decision Problems. Notre Dame Journal of Formal Logic 18 (2):305-309.
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  2. W. E. Singletary (1974). Many-One Degrees Associated with Partial Propositional Calculi. Notre Dame Journal of Formal Logic 15 (2):335-343.
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  3. C. E. Hughes & W. E. Singletary (1973). Combinatorial Systems with Axiom. Notre Dame Journal of Formal Logic 14 (3):354-360.
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  4. W. E. Singletary (1971). Review: W. L. Duda, Post Canonical Language. [REVIEW] Journal of Symbolic Logic 36 (2):343-343.
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  5. Paul Axt & W. E. Singletary (1969). Decision Problems Associated with Complete Deterministic Normal Systems. Mathematical Logic Quarterly 15 (19):299-304.
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  6. Paul Axt & W. E. Singletary (1969). On Deterministic Normal Systems. Mathematical Logic Quarterly 15 (4‐5):49-62.
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  7. W. E. Singletary (1969). Review: M. D. Gladstone, Some Ways of Constructing a Propositional Calculus of Any Required Degree of Unsolvability. [REVIEW] Journal of Symbolic Logic 34 (3):505-506.
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  8. W. E. Singletary (1968). Review: J. C. Shepherdson, Yehoshua Bar-Hillel, Machine Configuration and Word Problems of Given Degree of Unsolvability; J. C. Shepherdson, Machine Configuration and Word Problems of Given Degree of Unsolvability. [REVIEW] Journal of Symbolic Logic 33 (1):120-121.
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  9. W. E. Singletary (1968). Results Regarding the Axiomatization of Partial Propositional Calculi. Notre Dame Journal of Formal Logic 9 (3):193-211.
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  10. W. E. Singletary (1967). A Note on Finite Axiomatization of Partial Propositional Calculi. Journal of Symbolic Logic 32 (3):352-354.
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  11. W. E. Singletary (1967). Review: Ronald Harrop, A Relativization Procedure for Propositional Calculi, with an Application to a Generalized Form of Post's Theorem; Ronald Harrop, J. N. Crossley, M. A. E. Dummett, Some Generalizations and Applications of a Relativization Procedure for Propositional Calculi. [REVIEW] Journal of Symbolic Logic 32 (1):125-126.
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