Event JSON
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[
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"content": "#Calculemus: Demostraciones con Lean4 e Isabelle/HOL de \"length(xs ++ ys) = length(xs) + length(ys)\". https://jaalonso.github.io/calculemus/posts/2024/08/07-pruebas_de_lengthxs_%2B%2B_ys_ig_length_xs%2Blength_ys/ #ITP #Lean4 #IsabelleHOL #Math",
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