let S be non empty set ; for A being non-empty ManySortedSet of S
for R being ManySortedRelation of A
for s being Element of S
for a, b being Element of A . s holds
( [a,b] in (EqCl R) . s iff a,b are_convertible_wrt R . s )
let A be non-empty ManySortedSet of S; for R being ManySortedRelation of A
for s being Element of S
for a, b being Element of A . s holds
( [a,b] in (EqCl R) . s iff a,b are_convertible_wrt R . s )
let R be ManySortedRelation of A; for s being Element of S
for a, b being Element of A . s holds
( [a,b] in (EqCl R) . s iff a,b are_convertible_wrt R . s )
let s be Element of S; for a, b being Element of A . s holds
( [a,b] in (EqCl R) . s iff a,b are_convertible_wrt R . s )
(EqCl R) . s = EqCl (R . s)
by MSUALG_5:def 3;
hence
for a, b being Element of A . s holds
( [a,b] in (EqCl R) . s iff a,b are_convertible_wrt R . s )
by Th41; verum