(6steps total) PrintForm Definitions hol list 2 Sections HOLlib Doc
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At: not cons nil2 1 1

1. 'a : S
2. t : 'a List
3. h : 'a
  cons(ht) = nil  False


By: InstLemma_o (ioid !oid{not_cons_nil:s}) []


Generated subgoal:

1 4. 'a:S, t:'a List, h:'acons(ht) = nil
  cons(ht) = nil  False

2 steps

About:
listequalimpliesfalse
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(6steps total) PrintForm Definitions hol list 2 Sections HOLlib Doc