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  1. Mohamed A. Amer (1991). Review: John M. Vickers, Chance and Structure. An Essay on the Logical Foundations of Probability. [REVIEW] Journal of Symbolic Logic 56 (4):1492-1493.
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  2. Mohamed A. Amer (1989). First Order Logic with Empty Structures. Studia Logica 48 (2):169 - 177.
    For first order languages with no individual constants, empty structures and truth values (for sentences) in them are defined. The first order theories of the empty structures and of all structures (the empty ones included) are axiomatized with modus ponens as the only rule of inference. Compactness is proved and decidability is discussed. Furthermore, some well known theorems of model theory are reconsidered under this new situation. Finally, a word is said on other approaches to the whole problem.
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  3. Mohamed A. Amer (1985). Classification of Boolean Algebras of Logic and Probabilities Defined on Them by Classical Models. Mathematical Logic Quarterly 31 (31‐34):509-515.
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  4. Mohamed A. Amer (1985). Extension of Relatively |Sigma-Additive Probabilities on Boolean Algebras of Logic. Journal of Symbolic Logic 50 (3):589 - 596.
    Contrary to what is stated in Lemma 7.1 of [8], it is shown that some Boolean algebras of finitary logic admit finitely additive probabilities that are not σ-additive. Consequences of Lemma 7.1 are reconsidered. The concept of a C-σ-additive probability on B (where B and C are Boolean algebras, and $\mathscr{B} \subseteq \mathscr{C}$ ) is introduced, and a generalization of Hahn's extension theorem is proved. This and other results are employed to show that every S̄(L)-σ-additive probability on s̄(L) can be (...)
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