Ulrik Buchholtz

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Name	Ulrik Buchholtz
Member for	3 years
Seen	May 21 at 16:14
Website	math.stanford.edu/~utb
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Reference request for type theory

Arithmetic strength of Peano + the Howard ordinal

Ackermann-related function

Is any true sentence in the second-order Peano Axioms provable

Reduction rules for inductive types

Theorems for nothing (and the proofs for free)

categorifying induction in homotopy type theory

Is there any proof assistant based on first-order logic?

Mechanically instantiating abstract constructions

Why no morphisms from the contradictory proposition to the inconsistent context?

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lo.logic× 7
type-theory× 4
proof-assistant× 2
ct.category-theory× 2
soft-question
reference-request
proof-theory
ordinal-numbers
nt.number-theory
homotopy-theory

computer-science
computability-theory
categorification
big-list
abstract-algebra

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