let T be reflexive transitive antisymmetric with_suprema Noetherian adj-structured TA-structure ; :: thesis: for t being type of T
for a being adjective of T st a is_applicable_to t holds
a in adjs (a ast t)

let t be type of T; :: thesis: for a being adjective of T st a is_applicable_to t holds
a in adjs (a ast t)

let a be adjective of T; :: thesis: ( a is_applicable_to t implies a in adjs (a ast t) )
assume a is_applicable_to t ; :: thesis: a in adjs (a ast t)
then (types a) /\ (downarrow t) is Ideal of T by Th19;
then sup ((types a) /\ (downarrow t)) in (types a) /\ (downarrow t) by Th1;
then a ast t in types a by XBOOLE_0:def 4;
hence a in adjs (a ast t) by Th13; :: thesis: verum