Section WT_FIND_LABEL.
Scheme wt_stmt_ind2 := Minimality for wt_stmt Sort Prop
with wt_lblstmts2_ind2 := Minimality for wt_lblstmts Sort Prop.
End WT_FIND_LABEL.

Theorem wt_initial_state:
forall S, initial_state prog S -> wt_state S.