A proposal concerning the formulation of the infinitistic axiom in the theory of logical probability
On the extending of models (II)
On the extending of models (IV)
On extending of models V. Embedding theorems for relational models
"Abstract logics" and "Classical abstract logics"
CONTENTSPreface......................................................................................................................................................... 5ABSTRACT LOGICS (by D. J. Brown and E. Suszko)Introduction.................................................................................................................................................. 9I. Elementary properties of closure systems and closure operations............................................. 10II. Some properties...
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