let L be complete LATTICE; :: thesis: lim_inf-Convergence L is (CONSTANTS)
let N be constant net of L; :: according to YELLOW_6:def 23 :: thesis: ( not N in NetUniv L or [N,(the_value_of N)] in lim_inf-Convergence L )
assume A1: N in NetUniv L ; :: thesis: [N,(the_value_of N)] in lim_inf-Convergence L
for M being subnet of N holds the_value_of N = lim_inf M

proof

let M be subnet of N; :: thesis: the_value_of N = lim_inf M
A2: M is constant by Th17;
thus the_value_of N = the_value_of M by Th17
.= lim_inf M by A2, WAYBEL11:23 ; :: thesis: verum

end;

hence [N,(the_value_of N)] in lim_inf-Convergence L by A1, Def3; :: thesis: verum