Dissertation: The Ground Axiom

Cracked earth

Unforcing and the Ground Axiom My interest in “unforcing,” somehow working backwards from a forcing extension to a ground model, started early in my set theory studies. When I went through the rite of passage of learning Paul Cohen’s forcing – an exercise in induction, with a lovely (and at the time, frustratingly opaque) back-and-forth between technical details and...

My Mathematical Geneology

Tree growing out of ruins. Photo from:

Courtesy of the most excellent Mathematics Geneology Project. Me: Jonas Reitz My mathematical parent (graduate advisor): Joel David Hamkins My mathematical grandparent: William Woodin My mathematical great-grandparent: Robert Solovay My mathematical great-great-grandparent: Saunders Mac Lane My mathematical great-great-great-grandparent: Hermann Weyl My mathematical great-great-great-great...

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