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1968 | ||
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4 | J. Jay Zeman: Some Calculi with Strong Negation Primitive. J. Symb. Log. 33(1): 97-100 (1968) | |
3 | J. Jay Zeman: Lemmon-Style Bases for the Systems S1 ring- S4ring . J. Symb. Log. 33(3): 458-461 (1968) | |
2 | J. Jay Zeman: The Semisubstitutivity of Strict Implication. J. Symb. Log. 33(3): 462-464 (1968) | |
1967 | ||
1 | J. Jay Zeman: A System of Implicit Quantification. J. Symb. Log. 32(4): 480-504 (1967) |