Nuprl Lemma : pi-subst_wf
∀[x,t:Name]. ∀[p:pi_term()]. (pi-subst(t;x;p) ∈ pi_term())
Proof
Definitions occuring in Statement :
pi-subst: pi-subst(t;x;p),
pi_term: pi_term(),
name: Name,
uall: ∀[x:A]. B[x],
member: t ∈ T
Lemmas :
pi-subst-aux_wf,
cons_wf,
pi-names_wf,
nil_wf,
pi_term_wf,
name_wf
Latex:
\mforall{}[x,t:Name]. \mforall{}[p:pi\_term()]. (pi-subst(t;x;p) \mmember{} pi\_term())
Date html generated:
2015_07_23-AM-11_33_46
Last ObjectModification:
2015_01_29-AM-00_54_38
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