Journal of Philosophical Logic, Vol. 44, No. 3 (June 2015), pp. 237-258 (22 pages) Harold Hodes in [1] introduces an extension of first-order modal logic featuring a backtracking operator, and ...

What seem to be Kurt Gödel's first notes on logic, an exercise notebook of 84 pages, contains formal proofs in higher-order arithmetic and set theory. The choice of these topics is clearly suggested ...

Next, we roll another dice. Next, we roll the third dice as well. The dice in place of the question mark matches with option A.

Logic: Next number formed is (number x (number – 2)) – number ...