Beginning of Section A155670
Notation. We use 
- as a prefix operator with priority 358 corresponding to applying term 
minus_SNo.
 
Notation. We use 
+ as an infix operator with priority 360 and which associates to the right corresponding to applying term 
add_SNo.
 
Notation. We use 
* as an infix operator with priority 355 and which associates to the right corresponding to applying term 
mul_SNo.
 
Notation. We use 
< as an infix operator with priority 490 and no associativity corresponding to applying term 
SNoLt.
 
Notation. We use 
<= as an infix operator with priority 490 and no associativity corresponding to applying term 
SNoLe.
 
Variable  F0 : set → set
Hypothesis HF0 : ∀x0 ∈ int,  F0 x0  ∈  int 
Variable  G0 : set → set
Hypothesis HG0 : ∀x0 ∈ int,  G0 x0  ∈  int 
Variable  H0 : set
Hypothesis HH0 : H0  ∈  int 
Variable  U0 : set → set → set
Hypothesis HU0 : ∀x0 ∈ int,  ∀x1 ∈ int,  U0 x0 x1  ∈  int 
Variable  V0 : set → set
Hypothesis HV0 : ∀x0 ∈ int,  V0 x0  ∈  int 
Variable  F2 : set → set → set
Hypothesis HF2 : ∀x0 ∈ int,  ∀x1 ∈ int,  F2 x0 x1  ∈  int 
Variable  G2 : set
Hypothesis HG2 : G2  ∈  int 
Variable  H2 : set → set
Hypothesis HH2 : ∀x0 ∈ int,  H2 x0  ∈  int 
Variable  U2 : set → set → set
Hypothesis HU2 : ∀x0 ∈ int,  ∀x1 ∈ int,  U2 x0 x1  ∈  int 
Variable  V2 : set → set
Hypothesis HV2 : ∀x0 ∈ int,  V2 x0  ∈  int 
Variable  F1 : set → set
Hypothesis HF1 : ∀x0 ∈ int,  F1 x0  ∈  int 
Variable  G1 : set → set
Hypothesis HG1 : ∀x0 ∈ int,  G1 x0  ∈  int 
Variable  H1 : set
Hypothesis HH1 : H1  ∈  int 
Variable  U1 : set → set → set
Hypothesis HU1 : ∀x0 ∈ int,  ∀x1 ∈ int,  U1 x0 x1  ∈  int 
Variable  V1 : set → set
Hypothesis HV1 : ∀x0 ∈ int,  V1 x0  ∈  int 
Variable  SMALL : set → set
Hypothesis HSMALL : ∀x0 ∈ int,  SMALL x0  ∈  int 
Variable  F3 : set → set → set
Hypothesis HF3 : ∀x0 ∈ int,  ∀x1 ∈ int,  F3 x0 x1  ∈  int 
Variable  G3 : set → set → set
Hypothesis HG3 : ∀x0 ∈ int,  ∀x1 ∈ int,  G3 x0 x1  ∈  int 
Variable  H3 : set → set
Hypothesis HH3 : ∀x0 ∈ int,  H3 x0  ∈  int 
Variable  I3 : set
Hypothesis HI3 : I3  ∈  int 
Variable  J3 : set
Hypothesis HJ3 : J3  ∈  int 
Variable  U3 : set → set → set → set
Hypothesis HU3 : ∀x0 ∈ int,  ∀x1 ∈ int,  ∀x2 ∈ int,  U3 x0 x1 x2  ∈  int 
Variable  V3 : set → set → set → set
Hypothesis HV3 : ∀x0 ∈ int,  ∀x1 ∈ int,  ∀x2 ∈ int,  V3 x0 x1 x2  ∈  int 
Variable  W3 : set → set
Hypothesis HW3 : ∀x0 ∈ int,  W3 x0  ∈  int 
Variable  F4 : set → set → set
Hypothesis HF4 : ∀x0 ∈ int,  ∀x1 ∈ int,  F4 x0 x1  ∈  int 
Variable  G4 : set → set → set
Hypothesis HG4 : ∀x0 ∈ int,  ∀x1 ∈ int,  G4 x0 x1  ∈  int 
Variable  H4 : set → set
Hypothesis HH4 : ∀x0 ∈ int,  H4 x0  ∈  int 
Variable  I4 : set
Hypothesis HI4 : I4  ∈  int 
Variable  J4 : set
Hypothesis HJ4 : J4  ∈  int 
Variable  U4 : set → set → set → set
Hypothesis HU4 : ∀x0 ∈ int,  ∀x1 ∈ int,  ∀x2 ∈ int,  U4 x0 x1 x2  ∈  int 
Variable  V4 : set → set → set → set
Hypothesis HV4 : ∀x0 ∈ int,  ∀x1 ∈ int,  ∀x2 ∈ int,  V4 x0 x1 x2  ∈  int 
Variable  W4 : set → set
Hypothesis HW4 : ∀x0 ∈ int,  W4 x0  ∈  int 
Variable  FAST : set → set
Hypothesis HFAST : ∀x0 ∈ int,  FAST x0  ∈  int 
Hypothesis H1 : (∀X ∈ int,  ((F0 X) = ((X + X) + X))) 
Hypothesis H2 : (∀X ∈ int,  ((G0 X) = (X + X))) 
Hypothesis H3 : (H0 = 1)
Hypothesis H4 : (∀X ∈ int,  (∀Y ∈ int,  ((U0 X Y) = (if (X <= 0) then Y else (F0 (U0 (X + - 1) Y)))))) 
Hypothesis H5 : (∀X ∈ int,  ((V0 X) = (U0 (G0 X) H0))) 
Hypothesis H6 : (∀X ∈ int,  (∀Y ∈ int,  ((F2 X Y) = ((2 + Y) * X)))) 
Hypothesis H7 : (G2 = 2)
Hypothesis H8 : (∀X ∈ int,  ((H2 X) = X)) 
Hypothesis H9 : (∀X ∈ int,  (∀Y ∈ int,  ((U2 X Y) = (if (X <= 0) then Y else (F2 (U2 (X + - 1) Y) X))))) 
Hypothesis H10 : (∀X ∈ int,  ((V2 X) = (U2 G2 (H2 X)))) 
Hypothesis H11 : (∀X ∈ int,  ((F1 X) = ((V2 X) + - X))) 
Hypothesis H12 : (∀X ∈ int,  ((G1 X) = X)) 
Hypothesis H13 : (H1 = 1)
Hypothesis H14 : (∀X ∈ int,  (∀Y ∈ int,  ((U1 X Y) = (if (X <= 0) then Y else (F1 (U1 (X + - 1) Y)))))) 
Hypothesis H15 : (∀X ∈ int,  ((V1 X) = (U1 (G1 X) H1))) 
Hypothesis H16 : (∀X ∈ int,  ((SMALL X) = (((V0 X) + - 1) + (V1 X)))) 
Hypothesis H17 : (∀X ∈ int,  (∀Y ∈ int,  ((F3 X Y) = (X * Y)))) 
Hypothesis H18 : (∀X ∈ int,  (∀Y ∈ int,  ((G3 X Y) = Y))) 
Hypothesis H19 : (∀X ∈ int,  ((H3 X) = X)) 
Hypothesis H20 : (I3 = 1)
Hypothesis H21 : (J3 = (1 + (2 + (2 * (2 + 2))))) 
Hypothesis H22 : (∀X ∈ int,  (∀Y ∈ int,  (∀Z ∈ int,  ((U3 X Y Z) = (if (X <= 0) then Y else (F3 (U3 (X + - 1) Y Z) (V3 (X + - 1) Y Z))))))) 
Hypothesis H23 : (∀X ∈ int,  (∀Y ∈ int,  (∀Z ∈ int,  ((V3 X Y Z) = (if (X <= 0) then Z else (G3 (U3 (X + - 1) Y Z) (V3 (X + - 1) Y Z))))))) 
Hypothesis H24 : (∀X ∈ int,  ((W3 X) = (U3 (H3 X) I3 J3))) 
Hypothesis H25 : (∀X ∈ int,  (∀Y ∈ int,  ((F4 X Y) = (X * Y)))) 
Hypothesis H26 : (∀X ∈ int,  (∀Y ∈ int,  ((G4 X Y) = Y))) 
Hypothesis H27 : (∀X ∈ int,  ((H4 X) = X)) 
Hypothesis H28 : (I4 = 1)
Hypothesis H29 : (J4 = (1 + (2 * (2 + 2)))) 
Hypothesis H30 : (∀X ∈ int,  (∀Y ∈ int,  (∀Z ∈ int,  ((U4 X Y Z) = (if (X <= 0) then Y else (F4 (U4 (X + - 1) Y Z) (V4 (X + - 1) Y Z))))))) 
Hypothesis H31 : (∀X ∈ int,  (∀Y ∈ int,  (∀Z ∈ int,  ((V4 X Y Z) = (if (X <= 0) then Z else (G4 (U4 (X + - 1) Y Z) (V4 (X + - 1) Y Z))))))) 
Hypothesis H32 : (∀X ∈ int,  ((W4 X) = (U4 (H4 X) I4 J4))) 
Hypothesis H33 : (∀X ∈ int,  ((FAST X) = (((W3 X) + - 1) + (W4 X)))) 
Theorem. (
A155670) 
(∀N ∈ int,  ((0 <= N) → ((SMALL N) = (FAST N))))  
Proof:The rest of the proof is missing.