Terminal semantics for codata types in intensional Martin-L\"of type theory
classification
💻 cs.LO
math.CT
keywords
typecomonadintensionalmartin-lnotionsrelativesemanticsterminal
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In this work, we study the notions of relative comonad and comodule over a relative comonad, and use these notions to give a terminal coalgebra semantics for the coinductive type families of streams and of infinite triangular matrices, respectively, in intensional Martin-L\"of type theory. Our results are mechanized in the proof assistant Coq.
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