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At: member exists

  T:Type, L:T List. L = nil  (x:T. (x  L))

By: Unfold `l_member` 0 THEN AssertBY (0<||L||) Easy THEN InstConcl [L[0];0]


Generated subgoals:

None

About:
listnilnatural_numberless_thanuniverseequalimpliesallexists
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PrintForm Definitions mb list 1 Sections MarkB generic Doc