Nuprl Lemma : no-member-sq-nil 11,40

T:Type, L:(T List). (x:T(x  L))  (L ~ []) 
latex


Definitionsx:AB(x), P  Q, t  T, , P  Q, SQType(T), A, P  Q, P  Q, P & Q, False, {T}
Lemmasnot wf, l member wf, cons member

origin