let S1, S2 be non empty non void unsplit gate`1=arity gate`2isBoolean ManySortedSign ; :: thesis: ( InnerVertices S1 misses InputVertices S2 implies for A1 being gate`2=den Boolean Circuit of S1
for A2 being gate`2=den Boolean Circuit of S2
for s being State of (A1 +* A2)
for s2 being State of A2 st s2 = s | the carrier of S2 holds
for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s2,n) . v )

assume A1: InnerVertices S1 misses InputVertices S2 ; :: thesis: for A1 being gate`2=den Boolean Circuit of S1
for A2 being gate`2=den Boolean Circuit of S2
for s being State of (A1 +* A2)
for s2 being State of A2 st s2 = s | the carrier of S2 holds
for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s2,n) . v

let A1 be gate`2=den Boolean Circuit of S1; :: thesis: for A2 being gate`2=den Boolean Circuit of S2
for s being State of (A1 +* A2)
for s2 being State of A2 st s2 = s | the carrier of S2 holds
for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s2,n) . v

let A2 be gate`2=den Boolean Circuit of S2; :: thesis: for s being State of (A1 +* A2)
for s2 being State of A2 st s2 = s | the carrier of S2 holds
for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s2,n) . v

let s be State of (A1 +* A2); :: thesis: for s2 being State of A2 st s2 = s | the carrier of S2 holds
for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s2,n) . v

let s1 be State of A2; :: thesis: ( s1 = s | the carrier of S2 implies for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s1,n) . v )

assume A2: s1 = s | the carrier of S2 ; :: thesis: for v being set st v in the carrier of S2 holds
for n being Nat holds (Following s,n) . v = (Following s1,n) . v

let v be set ; :: thesis: ( v in the carrier of S2 implies for n being Nat holds (Following s,n) . v = (Following s1,n) . v )
assume A3: v in the carrier of S2 ; :: thesis: for n being Nat holds (Following s,n) . v = (Following s1,n) . v
let n be Nat; :: thesis: (Following s,n) . v = (Following s1,n) . v
A4: (Following s,n) | the carrier of S2 = Following s1,n by A1, A2, Th31;
the carrier of S2 = dom (Following s1,n) by CIRCUIT1:4;
hence (Following s,n) . v = (Following s1,n) . v by A3, A4, FUNCT_1:70; :: thesis: verum