A note on theories of learning.

A Note on Modeling Theories

We discuss formats for formal theories, from sets of models to more complex constructs with an epistemic slant, clarifying the issue of what it means to update a theory. Using properties of verisimilitude as a lead, we also provide some connections between formal calculus of theories in the philosophy of science and modal-epistemic logics. Throughout, we use this case study as a platform for di...

A Note On Equational Theories

the effect of explicit teaching of metacognitive vocabulary learning strategies on recall and retention of idioms

چکیده ندارد.

A Note on Six-Dimensional Gauge Theories

We study the new “gauge” theories in 5+1 dimensions, and their noncommutative generalizations. We argue that the θ-term and the non-commutative torus parameters appear on an equal footing in the non-critical string theories which define the gauge theories. The use of these theories as a Matrix description of M-theory on T 5, as well as a closely related realization as 5-branes in type IIB strin...

A Note on “Anomalous” Chiral Gauge Theories

We show that, the lattice regularization of chiral gauge theories proposed by Kaplan, when applied to a (2+1)-dimensional domain wall, produces a (1+1)-dimensional theory at low energy even if gauge anomaly produced by chiral fermions does not cancel. But the corresponding statement is not true in higher dimensions. Chiral gauge theories deserve deeper study because nature exhibits left-right a...