Beginning of Section A227138
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 F1 : setset
Hypothesis HF1 : ∀x0int, F1 x0 int
Variable G1 : set
Hypothesis HG1 : G1 int
Variable H1 : set
Hypothesis HH1 : H1 int
Variable U1 : setsetset
Hypothesis HU1 : ∀x0int, ∀x1int, U1 x0 x1 int
Variable V1 : set
Hypothesis HV1 : V1 int
Variable F0 : setsetset
Hypothesis HF0 : ∀x0int, ∀x1int, F0 x0 x1 int
Variable G0 : setset
Hypothesis HG0 : ∀x0int, G0 x0 int
Variable H0 : setset
Hypothesis HH0 : ∀x0int, H0 x0 int
Variable I0 : set
Hypothesis HI0 : I0 int
Variable J0 : set
Hypothesis HJ0 : J0 int
Variable U0 : setsetsetset
Hypothesis HU0 : ∀x0int, ∀x1int, ∀x2int, U0 x0 x1 x2 int
Variable V0 : setsetsetset
Hypothesis HV0 : ∀x0int, ∀x1int, ∀x2int, V0 x0 x1 x2 int
Variable W0 : setset
Hypothesis HW0 : ∀x0int, W0 x0 int
Variable SMALL : setset
Hypothesis HSMALL : ∀x0int, SMALL x0 int
Variable F3 : setset
Hypothesis HF3 : ∀x0int, F3 x0 int
Variable G3 : set
Hypothesis HG3 : G3 int
Variable F4 : setset
Hypothesis HF4 : ∀x0int, F4 x0 int
Variable G4 : set
Hypothesis HG4 : G4 int
Variable H4 : set
Hypothesis HH4 : H4 int
Variable U4 : setsetset
Hypothesis HU4 : ∀x0int, ∀x1int, U4 x0 x1 int
Variable V4 : set
Hypothesis HV4 : V4 int
Variable H3 : set
Hypothesis HH3 : H3 int
Variable U3 : setsetset
Hypothesis HU3 : ∀x0int, ∀x1int, U3 x0 x1 int
Variable V3 : set
Hypothesis HV3 : V3 int
Variable F2 : setsetset
Hypothesis HF2 : ∀x0int, ∀x1int, F2 x0 x1 int
Variable G2 : setset
Hypothesis HG2 : ∀x0int, G2 x0 int
Variable H2 : setset
Hypothesis HH2 : ∀x0int, H2 x0 int
Variable I2 : set
Hypothesis HI2 : I2 int
Variable J2 : set
Hypothesis HJ2 : J2 int
Variable U2 : setsetsetset
Hypothesis HU2 : ∀x0int, ∀x1int, ∀x2int, U2 x0 x1 x2 int
Variable V2 : setsetsetset
Hypothesis HV2 : ∀x0int, ∀x1int, ∀x2int, V2 x0 x1 x2 int
Variable W2 : setset
Hypothesis HW2 : ∀x0int, W2 x0 int
Variable FAST : setset
Hypothesis HFAST : ∀x0int, FAST x0 int
Hypothesis H1 : (∀Xint, ((F1 X) = (2 + ((X * X) * X))))
Hypothesis H2 : (G1 = 2)
Hypothesis H3 : (H1 = 2)
Hypothesis H4 : (∀Xint, (∀Yint, ((U1 X Y) = (if (X <= 0) then Y else (F1 (U1 (X + - 1) Y))))))
Hypothesis H5 : (V1 = (U1 G1 H1))
Hypothesis H6 : (∀Xint, (∀Yint, ((F0 X Y) = (((V1 + - 2) * X) + Y))))
Hypothesis H7 : (∀Xint, ((G0 X) = X))
Hypothesis H8 : (∀Xint, ((H0 X) = (X + X)))
Hypothesis H9 : (I0 = 1)
Hypothesis H10 : (J0 = 0)
Hypothesis H11 : (∀Xint, (∀Yint, (∀Zint, ((U0 X Y Z) = (if (X <= 0) then Y else (F0 (U0 (X + - 1) Y Z) (V0 (X + - 1) Y Z)))))))
Hypothesis H12 : (∀Xint, (∀Yint, (∀Zint, ((V0 X Y Z) = (if (X <= 0) then Z else (G0 (U0 (X + - 1) Y Z)))))))
Hypothesis H13 : (∀Xint, ((W0 X) = (U0 (H0 X) I0 J0)))
Hypothesis H14 : (∀Xint, ((SMALL X) = (W0 X)))
Hypothesis H15 : (∀Xint, ((F3 X) = ((X * X) * X)))
Hypothesis H16 : (G3 = 1)
Hypothesis H17 : (∀Xint, ((F4 X) = (X * X)))
Hypothesis H18 : (G4 = 1)
Hypothesis H19 : (H4 = (2 + (2 * (2 + 2))))
Hypothesis H20 : (∀Xint, (∀Yint, ((U4 X Y) = (if (X <= 0) then Y else (F4 (U4 (X + - 1) Y))))))
Hypothesis H21 : (V4 = (U4 G4 H4))
Hypothesis H22 : (H3 = V4)
Hypothesis H23 : (∀Xint, (∀Yint, ((U3 X Y) = (if (X <= 0) then Y else (F3 (U3 (X + - 1) Y))))))
Hypothesis H24 : (V3 = (U3 G3 H3))
Hypothesis H25 : (∀Xint, (∀Yint, ((F2 X Y) = (((2 + V3) * X) + - Y))))
Hypothesis H26 : (∀Xint, ((G2 X) = X))
Hypothesis H27 : (∀Xint, ((H2 X) = X))
Hypothesis H28 : (I2 = 1)
Hypothesis H29 : (J2 = 1)
Hypothesis H30 : (∀Xint, (∀Yint, (∀Zint, ((U2 X Y Z) = (if (X <= 0) then Y else (F2 (U2 (X + - 1) Y Z) (V2 (X + - 1) Y Z)))))))
Hypothesis H31 : (∀Xint, (∀Yint, (∀Zint, ((V2 X Y Z) = (if (X <= 0) then Z else (G2 (U2 (X + - 1) Y Z)))))))
Hypothesis H32 : (∀Xint, ((W2 X) = (U2 (H2 X) I2 J2)))
Hypothesis H33 : (∀Xint, ((FAST X) = (W2 X)))
Theorem. (A227138)
(∀Nint, ((0 <= N)((SMALL N) = (FAST N))))
Proof:
The rest of the proof is missing.

End of Section A227138