5,593 research outputs found
Canonical truth
No full textWe introduce and study some variants of a notion of canonical set theoretical truth. By this, we mean truth in a transitive proper class model M of ZFC that is uniquely characterized by some ∈-formula. We show that there are interesting statements that hold in all such models, but do not follow from ZFC, such as the ground model axiom and the nonexistence of measurable cardinals. We also study a related concept in which we only require M to be fixed up to elementary equivalence. We show that this theory-canonicity also goes beyond provability in ZFC, but it does not rule out measurable cardinals and it does not fix the size of the continuum
Genesis Breyer P-Orridge : Sacred Intent : Conversations with Carl Abrahamsson 1986–2019
No full text"Three decades of conversations with Genesis Breyer P-Orridge, provocateur, artist, gender revolutionary and leader of the bands Throbbing Gristle, Psychic TV and more
Published for legendary artist and musician Genesis Breyer P-Orridge’s 70th birthday in 2020, Sacred Intent gathers conversations between Breyer P-Orridge and his friend and collaborator, the Swedish author Carl Abrahamsson. From the first 1986 fanzine-based interview about current projects, philosophical insights, magical workings, international travels, art theory and gender revolutions, to 2019’s thoughts on life and death in the the shadow of battling leukaemia, Sacred Intent is a unique journey in which the art of conversation blooms to the highest degree." -- Distributor's website
Letter from Herbert Babbitt to Carl Hayden
No full textLetter from Herbert Babbitt to Carl T. Hayden about grazing cattle in the park boundaries
Letter from Bernie Zachau to Carl Hayden
No full textLetter from Bernie Zachau to Carl Hayden regarding water power in the Grand Canyon
Letter from Carl Hayden to Harold Greene
No full textLetter from Carl Hayden to Harold Greene regarding the progress of the national park bill
Letter from Arthur Ringland to Carl Hayden
No full textLetter from Arthur Ringland to Carl Hayden about road alignment survey through the Buggeln ranch
On the value group of a model of Peano Arithmetic
No full textWe investigate IPA-real closed fields, that is, real closed fields which admit an integer part whose
non-negative cone is a model of Peano arithmetic. We show that the value group of an IPA-real closed field
is an exponential group in the residue field, and that the converse fails in general. As an application, we
classify (up to isomorphism) value groups of countable recursively saturated exponential real closed fields.
We exploit this characterization to construct countable exponential real closed fields which are not IPA-real
closed fields
Letter from Ed Hamilton to Carl Hayden
No full textLetter from Ed Hamilton to Carl Hayden requesting maintenance for the road between Grand Canyon Village and Rowe's Well
Letter from Alf Dickinson to Carl Hayden
No full textLetter from Alf Dickenson to Carl T. Hayden about securing mining permits within the park
Letter from Carl Hayden to Bernie Zachau
No full textLetter from Carl Hayden to Bernie Zachau regarding the national park bill with an enclosed copy of the National Park Service Act
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