let IL be non empty set ; :: thesis: for N being with_non-empty_elements set
for S being non empty IC-Ins-separated AMI-Struct of IL,N
for s being State of S holds Start-At (IC s) = s | {(IC S)}

let N be with_non-empty_elements set ; :: thesis: for S being non empty IC-Ins-separated AMI-Struct of IL,N
for s being State of S holds Start-At (IC s) = s | {(IC S)}

let S be non empty IC-Ins-separated AMI-Struct of IL,N; :: thesis: for s being State of S holds Start-At (IC s) = s | {(IC S)}
let s be State of S; :: thesis: Start-At (IC s) = s | {(IC S)}
A1: IC S in dom s by Th94;
thus Start-At (IC s) = {[(IC S),(s . (IC S))]} by FUNCT_4:87
.= s | {(IC S)} by A1, GRFUNC_1:89 ; :: thesis: verum