Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

• Username
• Password
• Remember me

• Sign in using OpenID
  
  
• Remember me

• Forgot your password?
• Apply for membership

2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology definitions deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topological topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthornLab edit announcer
   • CommentTimeMay 16th 2025
   • PermaLink
   Author: nLab edit announcer
   Format: MarkdownItexsome anonymous user added to the [[Martin-Löf type theory]] page a set of inference rules describing a dependent type theory with a level of propositions for predicate logic and using the logic to define definitional equality. However, [[Martin-Löf type theory]] doesn't have a second prop judgment, so I split off that section to its own article on dependent type theories with a separate logic layer John Blackburn <a href="https://ncatlab.org/nlab/revision/logic+over+dependent+type+theory/1">v1</a>, <a href="https://ncatlab.org/nlab/show/logic+over+dependent+type+theory">current</a>

   some anonymous user added to the Martin-Löf type theory page a set of inference rules describing a dependent type theory with a level of propositions for predicate logic and using the logic to define definitional equality. However, Martin-Löf type theory doesn’t have a second prop judgment, so I split off that section to its own article on dependent type theories with a separate logic layer

   John Blackburn

   v1, current