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haschu/nominal-lean.git
graded-algebra
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name-restriction-model
Formalization of nominal sets in Lean 4.
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Nominal
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2026-01-11
prove well-definedness of restrict operation
Hannes Schulze
2026-01-10
well-definedness of union
Hannes Schulze
2026-01-10
add model at depth 0
Hannes Schulze
2025-12-05
define algebras
Hannes Schulze
2025-12-04
implement derivable equality
Hannes Schulze
2025-12-03
refactor equivariant props to use type classes
Hannes Schulze
2025-12-02
minor cleanup
Hannes Schulze
2025-12-01
finish initial lambda terms modulo alpha-equivalence
Hannes Schulze
2025-12-01
prove pick_fresh
Hannes Schulze
2025-11-30
update lean
Hannes Schulze
2025-11-20
wip terms
Hannes Schulze
2025-10-30
prove supp of preterms
Hannes Schulze
2025-10-30
implement lambda preterms
Hannes Schulze
2025-10-29
refactor equivariance namespaces
Hannes Schulze
2025-10-28
name abstraction functor
Hannes Schulze
2025-10-28
restructure alpha equivalence
Hannes Schulze
2025-10-28
finish name abstraction supp proof
Hannes Schulze
2025-10-28
more wip
Hannes Schulze
2025-10-27
wip: name abstractions form a nominal set
Hannes Schulze
2025-10-27
quotient types as nominal sets
Hannes Schulze
2025-10-26
finish name abstraction proofs
Hannes Schulze
2025-10-26
simplify FPerm computations
Hannes Schulze
2025-10-25
start working on alpha equivalence proofs
Hannes Schulze
2025-10-24
use simp only everywhere except for last goal
Hannes Schulze
2025-10-24
show properties for freshness quantifier based on equivariant relations
Hannes Schulze
2025-10-24
fill in some proofs
Hannes Schulze
2025-10-24
proof sketch for proving different AlphaEq characterizations
Hannes Schulze
2025-10-24
refactor namespaces
Hannes Schulze
2025-10-23
basic structure for name abstraction
Hannes Schulze
2025-10-23
add forgetful functors
Hannes Schulze
2025-10-23
add category definition
Hannes Schulze
2025-10-23
refactor: move instances
Hannes Schulze
2025-10-23
add equivariant instances
Hannes Schulze
2025-10-23
define equivariance
Hannes Schulze
2025-10-23
add freshness
Hannes Schulze
2025-10-22
always require infinite, countable, equality-decidable atoms
Hannes Schulze
2025-10-22
update imports
Hannes Schulze
2025-10-22
add product and coproduct instances
Hannes Schulze
2025-10-22
some helper lemmas for fix
Hannes Schulze
2025-10-22
further simplifications
Hannes Schulze
2025-10-21
Restructure support_inter proof
Hannes Schulze
2025-10-21
restructure
Hannes Schulze
2025-10-21
very rough draft for support_inter
Hannes Schulze
2025-10-21
simplify some more
Hannes Schulze
2025-10-21
add some proofs about specific least supports
Hannes Schulze
2025-10-20
some simplifications
Hannes Schulze
2025-10-20
prove things about intersections and supports
Hannes Schulze
2025-10-20
Prove nonempty induction on finsets
Hannes Schulze
2025-10-20
further work
Hannes Schulze
2025-10-20
further work on nominal set definition
Hannes Schulze
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