Principal scope produces boolean
Cedar.Thm.principal_scope_produces_boolean
Plain-language statement
Lemma: evaluating the principalScope of any policy produces a boolean (and does not error)
Exact Lean statement
theorem principal_scope_produces_boolean (policy : Policy) (request : Request) (entities : Entities) : producesBool policy.principalScope.toExpr request entities
Formal artifact
Lean source
theorem principal_scope_produces_boolean (policy : Policy) (request : Request) (entities : Entities) : producesBool policy.principalScope.toExpr request entities:= by simp only [producesBool, PrincipalScope.toExpr, Scope.toExpr, Bool.false_eq_true] cases policy.principalScope.1 <;> simp [evaluate, Var.eqEntityUID, Var.inEntityUID, Var.isEntityType, apply₁, apply₂] case isMem ety uid => simp only [Result.as, Coe.coe, Value.asBool, Except.bind_ok, beq_eq_false_iff_ne, ne_eq, ite_not] generalize (inₑ request.principal uid entities) = b₁ generalize (ety == request.principal.ty) = b₂ split <;> rename_i h · trivial · split at h <;> simp at h- Project
- Cedar Specification
- License
- Apache-2.0
- Commit
- 3f093947b8ae
- Source
- cedar-lean/Cedar/Thm/Authorization/Authorizer.lean:319-332
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Source project: Cedar Specification
Person-level attribution pending.
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Cedar.Data.Map.find?_notmem_keys
Plain-language statement
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Source project: Cedar Specification
Person-level attribution pending.
Find? some iff in values
Cedar.Data.Map.find?_some_iff_in_values
Plain-language statement
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Source project: Cedar Specification
Person-level attribution pending.