I show that "weak" variants of positive and negative introspection principles are much stronger than expected and are susceptible to versions of the standard arguments against positive and negative introspection.
Fitch's Paradox and Level-Bridging Principles (The Journal of Philosophy, 2020)
I generalise Fitch's Paradox to show that standard diagnoses of it are mistaken and it depends on much weaker assumptions than commonly thought needed.
Disappearing Diamonds: Fitch-Like Results in Bimodal Logic (Journal of Philosophical Logic, 2019)