David Schrittesser

activity

20142026

most citedA co-analytic Cohen indestructible maximal cofinitary group

11 citations · 73 across the 28 of their papers we have counts for

collaborators

Showing 2022 · math.LOShow all

2 papers · 2 filters

math.LO2022★ 2 cited

Coding over Core Models

Sy David Friedman, Ralf Schindler, David Schrittesser

Early in their careers, both Peter Koepke and Philip Welch made major contributions to two important areas of set theory, core model theory and coding, respectively. In this articl…

math.LO2022

Lightface $Σ_{2}^{1}$ -indescribable cardinals

David Schrittesser

$Σ_{3}^{1}$ -absoluteness for ccc forcing means that for any ccc forcing $P$ , $H_{ω_{1}}^{V} ≺_{Σ_{2}} H_{ω_{1}}^{V^{P}}$ . " $ω_{1}$ inaccessible to reals" means that for any real $r$ , ${ω_1}…

Coding over Core Models

Lightface Σ21​-indescribable cardinals

Lightface $Σ_{2}^{1}$ -indescribable cardinals