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structure

UniversalInstantiationCert

definition
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module
IndisputableMonolith.Foundation.UniversalInstantiationFromDistinction
domain
Foundation
line
190 · github
papers citing
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open explainer

Generate a durable explainer page for this declaration.

open lean source

IndisputableMonolith.Foundation.UniversalInstantiationFromDistinction on GitHub at line 190.

browse module

All declarations in this module, on Recognition.

explainer page

Tracked in the explainer inventory; generation is lazy so crawlers do not trigger LLM jobs.

open explainer

depends on

used by

formal source

 187
 188/-! ## Certificate -/
 189
 190structure UniversalInstantiationCert (K : Type u) [Nonempty K] : Prop where
 191  instantiate :
 192    (∃ x y : K, x ≠ y) → Nonempty (LogicRealization.{u, 0})
 193  named :
 194    (∃ x y : K, x ≠ y) →
 195      ∃ x y : K, ∃ hxy : x ≠ y,
 196        Nonempty (LogicRealization.{u, 0})
 197
 198theorem universalInstantiationCert
 199    (K : Type u) [Nonempty K] :
 200    UniversalInstantiationCert K where
 201  instantiate := exists_logicRealization_of_distinction K
 202  named := exists_named_logicRealization_of_distinction K
 203
 204end UniversalInstantiationFromDistinction
 205end Foundation
 206end IndisputableMonolith