let X be non empty Ordinal; for x being Element of X
for L being non trivial well-unital doubleLoopStr
for e being Function of X,L holds eval ((UnitBag x),e) = e . x
let x be Element of X; for L being non trivial well-unital doubleLoopStr
for e being Function of X,L holds eval ((UnitBag x),e) = e . x
let L be non trivial well-unital doubleLoopStr ; for e being Function of X,L holds eval ((UnitBag x),e) = e . x
let e be Function of X,L; eval ((UnitBag x),e) = e . x
reconsider edx = e . x as Element of L ;
support (UnitBag x) = {x}
by Th8;
hence eval ((UnitBag x),e) =
(power L) . ((e . x),((UnitBag x) . x))
by POLYNOM2:15
.=
(power L) . ((e . x),(0 + 1))
by Th9
.=
((power L) . (edx,0)) * edx
by GROUP_1:def 7
.=
(1_ L) * edx
by GROUP_1:def 7
.=
e . x
;
verum