let am, bm, cm, dm be non pair set ; :: thesis: for cin being set st cin <> [<*dm,(GFA3AdderOutput am,bm,cm)*>,and2b ] & not cin in InnerVertices (BitGFA3Str am,bm,cm) holds
for s being State of (BitFTA3Circ am,bm,cm,dm,cin)
for a1, a2, a3, a4, a5 being Element of BOOLEAN st a1 = s . am & a2 = s . bm & a3 = s . cm & a4 = s . dm & a5 = s . cin holds
( (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) & (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 )
let cin be set ; :: thesis: ( cin <> [<*dm,(GFA3AdderOutput am,bm,cm)*>,and2b ] & not cin in InnerVertices (BitGFA3Str am,bm,cm) implies for s being State of (BitFTA3Circ am,bm,cm,dm,cin)
for a1, a2, a3, a4, a5 being Element of BOOLEAN st a1 = s . am & a2 = s . bm & a3 = s . cm & a4 = s . dm & a5 = s . cin holds
( (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) & (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 ) )
assume A1: ( cin <> [<*dm,(GFA3AdderOutput am,bm,cm)*>,and2b ] & not cin in InnerVertices (BitGFA3Str am,bm,cm) ) ; :: thesis: for s being State of (BitFTA3Circ am,bm,cm,dm,cin)
for a1, a2, a3, a4, a5 being Element of BOOLEAN st a1 = s . am & a2 = s . bm & a3 = s . cm & a4 = s . dm & a5 = s . cin holds
( (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) & (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 )
set A1 = GFA3AdderOutput am,bm,cm;
set C1 = BitGFA3Circ am,bm,cm;
set S1 = BitGFA3Str am,bm,cm;
set S2 = BitGFA3Str (GFA3AdderOutput am,bm,cm),cin,dm;
set C2 = BitGFA3Circ (GFA3AdderOutput am,bm,cm),cin,dm;
set S = BitFTA3Str am,bm,cm,dm,cin;
let s be State of (BitFTA3Circ am,bm,cm,dm,cin); :: thesis: for a1, a2, a3, a4, a5 being Element of BOOLEAN st a1 = s . am & a2 = s . bm & a3 = s . cm & a4 = s . dm & a5 = s . cin holds
( (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) & (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 )
let a1, a2, a3, a4, a5 be Element of BOOLEAN ; :: thesis: ( a1 = s . am & a2 = s . bm & a3 = s . cm & a4 = s . dm & a5 = s . cin implies ( (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) & (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 ) )
assume that
A2: a1 = s . am and
A3: a2 = s . bm and
A4: a3 = s . cm and
A5: a4 = s . dm and
A6: a5 = s . cin ; :: thesis: ( (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) & (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 )
reconsider s1 = s | the carrier of (BitGFA3Str am,bm,cm) as State of (BitGFA3Circ am,bm,cm) by FACIRC_1:26;
A7: dom s1 = the carrier of (BitGFA3Str am,bm,cm) by CIRCUIT1:4;
A8: dm in InputVertices (BitFTA3Str am,bm,cm,dm,cin) by A1, Th36;
then A9: (Following s) . dm = a4 by A5, CIRCUIT2:def 5;
A10: cm in InputVertices (BitFTA3Str am,bm,cm,dm,cin) by A1, Th36;
then A11: (Following s) . cm = a3 by A4, CIRCUIT2:def 5;
bm in the carrier of (BitGFA3Str am,bm,cm) by GFACIRC1:155;
then A12: a2 = s1 . bm by A3, A7, FUNCT_1:70;
reconsider t = s as State of ((BitGFA3Circ am,bm,cm) +* (BitGFA3Circ (GFA3AdderOutput am,bm,cm),cin,dm)) ;
( GFA3AdderOutput am,bm,cm in the carrier of (BitGFA3Str am,bm,cm) & InputVertices (BitGFA3Str am,bm,cm) misses InnerVertices (BitGFA3Str (GFA3AdderOutput am,bm,cm),cin,dm) ) by Lm32, GFACIRC1:155;
then A13: (Following t,2) . (GFA3AdderOutput am,bm,cm) = (Following s1,2) . (GFA3AdderOutput am,bm,cm) by FACIRC_1:32;
cm in the carrier of (BitGFA3Str am,bm,cm) by GFACIRC1:155;
then A14: a3 = s1 . cm by A4, A7, FUNCT_1:70;
am in the carrier of (BitGFA3Str am,bm,cm) by GFACIRC1:155;
then a1 = s1 . am by A2, A7, FUNCT_1:70;
hence (Following s,2) . (GFA3AdderOutput am,bm,cm) = 'not' ((('not' a1) 'xor' ('not' a2)) 'xor' ('not' a3)) by A12, A14, A13, GFACIRC1:158; :: thesis: ( (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 )
A15: bm in InputVertices (BitFTA3Str am,bm,cm,dm,cin) by A1, Th36;
then A16: (Following s) . bm = a2 by A3, CIRCUIT2:def 5;
A17: cin in InputVertices (BitFTA3Str am,bm,cm,dm,cin) by A1, Th36;
then A18: (Following s) . cin = a5 by A6, CIRCUIT2:def 5;
A19: am in InputVertices (BitFTA3Str am,bm,cm,dm,cin) by A1, Th36;
then ( Following s,2 = Following (Following s) & (Following s) . am = a1 ) by A2, CIRCUIT2:def 5, FACIRC_1:15;
hence ( (Following s,2) . am = a1 & (Following s,2) . bm = a2 & (Following s,2) . cm = a3 & (Following s,2) . dm = a4 & (Following s,2) . cin = a5 ) by A19, A15, A10, A8, A17, A16, A11, A9, A18, CIRCUIT2:def 5; :: thesis: verum