let S be non empty non void bool-correct 4,1 integer BoolSignature ; :: thesis: for X being non-empty ManySortedSet of the carrier of S
for T being b₁,S -terms all_vars_including inheriting_operations free_in_itself vf-free integer VarMSAlgebra over S
for C being bool-correct 4,1 integer image of T
for G being basic GeneratorSystem over S,X,T
for I being integer SortSymbol of S
for t1, t2 being Element of T,I
for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let X be non-empty ManySortedSet of the carrier of S; :: thesis: for T being X,S -terms all_vars_including inheriting_operations free_in_itself vf-free integer VarMSAlgebra over S
for C being bool-correct 4,1 integer image of T
for G being basic GeneratorSystem over S,X,T
for I being integer SortSymbol of S
for t1, t2 being Element of T,I
for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let T be X,S -terms all_vars_including inheriting_operations free_in_itself vf-free integer VarMSAlgebra over S; :: thesis: for C being bool-correct 4,1 integer image of T
for G being basic GeneratorSystem over S,X,T
for I being integer SortSymbol of S
for t1, t2 being Element of T,I
for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let C be bool-correct 4,1 integer image of T; :: thesis: for G being basic GeneratorSystem over S,X,T
for I being integer SortSymbol of S
for t1, t2 being Element of T,I
for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let G be basic GeneratorSystem over S,X,T; :: thesis: for I being integer SortSymbol of S
for t1, t2 being Element of T,I
for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let I be integer SortSymbol of S; :: thesis: for t1, t2 being Element of T,I
for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let t1, t2 be Element of T,I; :: thesis: for s being Element of C -States the generators of G holds (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
let s be Element of C -States the generators of G; :: thesis: (t1 div t2) value_at (C,s) = (t1 value_at (C,s)) div (t2 value_at (C,s))
A1: s is ManySortedFunction of the generators of G, the Sorts of C by AOFA_A00:48;
then consider f being ManySortedFunction of T,C such that
A2: ( f is_homomorphism T,C & s = f || the generators of G ) by AOFA_A00:def 19;
the generators of G is_transformable_to the Sorts of C by MSAFREE4:21;
then A3: doms s = the generators of G by A1, MSSUBFAM:17;
then consider f1 being ManySortedFunction of T,C, Q1 being GeneratorSet of T such that
A4: ( f1 is_homomorphism T,C & Q1 = doms s & s = f1 || Q1 & t1 value_at (C,s) = (f1 . I) . t1 ) by A2, AOFA_A00:def 21;
consider f2 being ManySortedFunction of T,C, Q2 being GeneratorSet of T such that
A5: ( f2 is_homomorphism T,C & Q2 = doms s & s = f2 || Q2 & t2 value_at (C,s) = (f2 . I) . t2 ) by A2, A3, AOFA_A00:def 21;
consider f being ManySortedFunction of T,C, Q being GeneratorSet of T such that
A6: ( f is_homomorphism T,C & Q = doms s & s = f || Q & (t1 div t2) value_at (C,s) = (f . I) . (t1 div t2) ) by A2, A3, AOFA_A00:def 21;
A7: ( f = f1 & f = f2 ) by A4, A5, A6, EXTENS_1:19;
set o = In (( the connectives of S . 9), the carrier' of S);
A8: ( the_arity_of (In (( the connectives of S . 9), the carrier' of S)) = <*I,I*> & the_result_sort_of (In (( the connectives of S . 9), the carrier' of S)) = I ) by Th19;
then Args ((In (( the connectives of S . 9), the carrier' of S)),T) = product <*( the Sorts of T . I),( the Sorts of T . I)*> by Th23;
then reconsider p = <*t1,t2*> as Element of Args ((In (( the connectives of S . 9), the carrier' of S)),T) by FINSEQ_3:124;
thus (t1 div t2) value_at (C,s) = (Den ((In (( the connectives of S . 9), the carrier' of S)),C)) . (f # p) by A6, A8
.= (t1 value_at (C,s)) div (t2 value_at (C,s)) by A4, A5, A7, A8, Th26 ; :: thesis: verum