Full Idea
Generalized 2D semantics is meant to vindicate the traditional idea that we have apriori access to our own meanings through armchair reflection.
Gist of Idea
2D semantics gives us apriori knowledge of our own meanings
Source
Laura Schroeter (Two-Dimensional Semantics [2010], 2.1)
Book Reference
'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [plato.stanford.edu], p.12
A Reaction
The idea is to split meaning in two, so that we know one part of it a priori. It is an unfashionably internalist view of meaning (which doesn't make it wrong!).
Related Idea
Idea 14712 A sentence is a priori if no possible way the world might actually be could make it false [Chalmers]