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References
- ↑ Goldson, D., (1994) Review of The Language of First-Order Logic, including the Macintosh Program Tarski's World. The Philosophical Quarterly, 44, 175, 272–275.
- ↑ Fallis, D.,(1999). Review of The Language of First-Order Logic, Including the IBM-Compatible Windows Version of Tarski's World 4.0. Journal of Symbolic Logic, 64, 2, 916–918.
- ↑ Compton, K. J., (1993). Review of The Language of First-Order Logic, including the Program Tarski's World. Journal of Symbolic Logic, 58, 1, 362–363.
- ↑ Bailhache, P.(1992). Review of The Language of First-Order Logic, Including the Macintosh™ Tarski's World. Studia Logica, 51, 1, 145–147.
- ↑ Goldson, D., Reeves, S. and R. Bornat (1993) A Review of Several Programs for the Teaching of Logic, The Computer Journal, Volume 36, Issue 4, pp. 373-386.
- ↑ Barwise, Jon; Etchemendy, John (1992). "Hyperproof: Logical Reasoning with Diagrams". AAAI Technical Report SS-92-02.