Modal logic, an extension of classical logic, investigates the modes of truth such as necessity and possibility. Its development has been closely intertwined with advances in proof theory, a field ...

See all Abstractions blog Inspired by Curry’s observation, the mathematical logician William Alvin Howard discovered a deeper link between computation and logic in 1969, showing that running a ...

Studia Logica publishes original papers on various logical systems, which utilize methods of contemporary formal logic (those of algebra, model theory, proof theory, etc.). More specifically, Studia ...

If each logical qubit required 10 hardware qubits, the machine used for this work could only host 22 of them at once; QuEra's hardware only boosts that to 25.

This kind of ontological proof is a favorite whipping-argument for atheists, just because it seems so prima facie silly. Just ask Jesus and Mo. This kind of mockery is a little unfair (although only a ...

We introduce a logic BI in which a multiplicative (or linear) and an additive (or intuitionistic) implication live side-by-side. The propositional version of BI arises from an analysis of the ...