https://github.com/jaycech3n/Isabelle-HoTT
Revision 00463d770fd738749c092829e3b49e4f7d25f75e authored by Josh Chen on 17 July 2020, 09:12:00 UTC, committed by Josh Chen on 17 July 2020, 09:12:00 UTC
1 parent 9eb4aeb
Tip revision: 00463d770fd738749c092829e3b49e4f7d25f75e authored by Josh Chen on 17 July 2020, 09:12:00 UTC
looks like descriptions not allowed in workflow job yaml
looks like descriptions not allowed in workflow job yaml
Tip revision: 00463d7
More_List.thy
theory More_List
imports
Spartan.List
Nat
begin
section \<open>Length\<close>
definition [implicit]: "len \<equiv> ListRec ? Nat 0 (fn _ _ rec. suc rec)"
experiment begin
Lemma "len [] \<equiv> ?n" by (subst comps)+
Lemma "len [0, suc 0, suc (suc 0)] \<equiv> ?n" by (subst comps)+
end
end
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