Beginning of Section A20579

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 F2 : set → set

Hypothesis HF2 : ∀x0 ∈ int, F2 x0 ∈ int

Variable G2 : set → set → set

Hypothesis HG2 : ∀x0 ∈ int, ∀x1 ∈ int, G2 x0 x1 ∈ int

Variable H2 : set

Hypothesis HH2 : H2 ∈ int

Variable U2 : set → set → set

Hypothesis HU2 : ∀x0 ∈ int, ∀x1 ∈ int, U2 x0 x1 ∈ int

Variable V2 : set → set → set

Hypothesis HV2 : ∀x0 ∈ int, ∀x1 ∈ int, V2 x0 x1 ∈ int

Variable F1 : set → set → set

Hypothesis HF1 : ∀x0 ∈ int, ∀x1 ∈ int, F1 x0 x1 ∈ int

Variable G1 : set → set → set

Hypothesis HG1 : ∀x0 ∈ int, ∀x1 ∈ int, G1 x0 x1 ∈ 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 → set

Hypothesis HV1 : ∀x0 ∈ int, ∀x1 ∈ int, V1 x0 x1 ∈ int

Variable F0 : set → set → set

Hypothesis HF0 : ∀x0 ∈ int, ∀x1 ∈ int, F0 x0 x1 ∈ 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 SMALL : set → set

Hypothesis HSMALL : ∀x0 ∈ int, SMALL x0 ∈ int

Variable F5 : set → set → set

Hypothesis HF5 : ∀x0 ∈ int, ∀x1 ∈ int, F5 x0 x1 ∈ int

Variable G5 : set → set → set

Hypothesis HG5 : ∀x0 ∈ int, ∀x1 ∈ int, G5 x0 x1 ∈ int

Variable H5 : set → set

Hypothesis HH5 : ∀x0 ∈ int, H5 x0 ∈ int

Variable I5 : set

Hypothesis HI5 : I5 ∈ int

Variable J5 : set

Hypothesis HJ5 : J5 ∈ int

Variable U5 : set → set → set → set

Hypothesis HU5 : ∀x0 ∈ int, ∀x1 ∈ int, ∀x2 ∈ int, U5 x0 x1 x2 ∈ int

Variable V5 : set → set → set → set

Hypothesis HV5 : ∀x0 ∈ int, ∀x1 ∈ int, ∀x2 ∈ int, V5 x0 x1 x2 ∈ int

Variable W5 : set → set

Hypothesis HW5 : ∀x0 ∈ int, W5 x0 ∈ int

Variable F6 : set → set

Hypothesis HF6 : ∀x0 ∈ int, F6 x0 ∈ int

Variable G6 : set

Hypothesis HG6 : G6 ∈ int

Variable F7 : set → set

Hypothesis HF7 : ∀x0 ∈ int, F7 x0 ∈ int

Variable G7 : set → set

Hypothesis HG7 : ∀x0 ∈ int, G7 x0 ∈ int

Variable H7 : set

Hypothesis HH7 : H7 ∈ int

Variable U7 : set → set → set

Hypothesis HU7 : ∀x0 ∈ int, ∀x1 ∈ int, U7 x0 x1 ∈ int

Variable V7 : set → set

Hypothesis HV7 : ∀x0 ∈ int, V7 x0 ∈ int

Variable H6 : set → set

Hypothesis HH6 : ∀x0 ∈ int, H6 x0 ∈ int

Variable U6 : set → set → set

Hypothesis HU6 : ∀x0 ∈ int, ∀x1 ∈ int, U6 x0 x1 ∈ int

Variable V6 : set → set

Hypothesis HV6 : ∀x0 ∈ int, V6 x0 ∈ int

Variable F4 : set → set

Hypothesis HF4 : ∀x0 ∈ int, F4 x0 ∈ int

Variable G4 : set

Hypothesis HG4 : G4 ∈ int

Variable H4 : set → set → set

Hypothesis HH4 : ∀x0 ∈ int, ∀x1 ∈ int, H4 x0 x1 ∈ int

Variable U4 : set → set → set

Hypothesis HU4 : ∀x0 ∈ int, ∀x1 ∈ int, U4 x0 x1 ∈ int

Variable V4 : set → set → set

Hypothesis HV4 : ∀x0 ∈ int, ∀x1 ∈ int, V4 x0 x1 ∈ int

Variable F3 : set → set → set

Hypothesis HF3 : ∀x0 ∈ int, ∀x1 ∈ int, F3 x0 x1 ∈ int

Variable G3 : set → set

Hypothesis HG3 : ∀x0 ∈ int, G3 x0 ∈ int

Variable H3 : set

Hypothesis HH3 : H3 ∈ int

Variable U3 : set → set → set

Hypothesis HU3 : ∀x0 ∈ int, ∀x1 ∈ int, U3 x0 x1 ∈ int

Variable V3 : set → set

Hypothesis HV3 : ∀x0 ∈ int, V3 x0 ∈ int

Variable FAST : set → set

Hypothesis HFAST : ∀x0 ∈ int, FAST x0 ∈ int

Hypothesis H1 : (∀X ∈ int, ((F2 X) = ((X + X) + X)))

Hypothesis H2 : (∀X ∈ int, (∀Y ∈ int, ((G2 X Y) = (Y + Y))))

Hypothesis H3 : (H2 = 1)

Hypothesis H4 : (∀X ∈ int, (∀Y ∈ int, ((U2 X Y) = (if (X <= 0) then Y else (F2 (U2 (X + - 1) Y))))))

Hypothesis H5 : (∀X ∈ int, (∀Y ∈ int, ((V2 X Y) = (U2 (G2 X Y) H2))))

Hypothesis H6 : (∀X ∈ int, (∀Y ∈ int, ((F1 X Y) = ((V2 X Y) + (2 * ((X + X) + X))))))

Hypothesis H7 : (∀X ∈ int, (∀Y ∈ int, ((G1 X Y) = Y)))

Hypothesis H8 : (H1 = 1)

Hypothesis H9 : (∀X ∈ int, (∀Y ∈ int, ((U1 X Y) = (if (X <= 0) then Y else (F1 (U1 (X + - 1) Y) X)))))

Hypothesis H10 : (∀X ∈ int, (∀Y ∈ int, ((V1 X Y) = (U1 (G1 X Y) H1))))

Hypothesis H11 : (∀X ∈ int, (∀Y ∈ int, ((F0 X Y) = ((V1 X Y) + (2 * (2 * (X + X)))))))

Hypothesis H12 : (∀X ∈ int, ((G0 X) = X))

Hypothesis H13 : (H0 = 1)

Hypothesis H14 : (∀X ∈ int, (∀Y ∈ int, ((U0 X Y) = (if (X <= 0) then Y else (F0 (U0 (X + - 1) Y) X)))))

Hypothesis H15 : (∀X ∈ int, ((V0 X) = (U0 (G0 X) H0)))

Hypothesis H16 : (∀X ∈ int, ((SMALL X) = (V0 X)))

Hypothesis H17 : (∀X ∈ int, (∀Y ∈ int, ((F5 X Y) = (X * Y))))

Hypothesis H18 : (∀X ∈ int, (∀Y ∈ int, ((G5 X Y) = Y)))

Hypothesis H19 : (∀X ∈ int, ((H5 X) = (1 + X)))

Hypothesis H20 : (I5 = 1)

Hypothesis H21 : (J5 = (1 + (2 * (2 + 2))))

Hypothesis H22 : (∀X ∈ int, (∀Y ∈ int, (∀Z ∈ int, ((U5 X Y Z) = (if (X <= 0) then Y else (F5 (U5 (X + - 1) Y Z) (V5 (X + - 1) Y Z)))))))

Hypothesis H23 : (∀X ∈ int, (∀Y ∈ int, (∀Z ∈ int, ((V5 X Y Z) = (if (X <= 0) then Z else (G5 (U5 (X + - 1) Y Z) (V5 (X + - 1) Y Z)))))))

Hypothesis H24 : (∀X ∈ int, ((W5 X) = (U5 (H5 X) I5 J5)))

Hypothesis H25 : (∀X ∈ int, ((F6 X) = ((X * X) * X)))

Hypothesis H26 : (G6 = 1)

Hypothesis H27 : (∀X ∈ int, ((F7 X) = (X + X)))

Hypothesis H28 : (∀X ∈ int, ((G7 X) = X))

Hypothesis H29 : (H7 = 2)

Hypothesis H30 : (∀X ∈ int, (∀Y ∈ int, ((U7 X Y) = (if (X <= 0) then Y else (F7 (U7 (X + - 1) Y))))))

Hypothesis H31 : (∀X ∈ int, ((V7 X) = (U7 (G7 X) H7)))

Hypothesis H32 : (∀X ∈ int, ((H6 X) = (V7 X)))

Hypothesis H33 : (∀X ∈ int, (∀Y ∈ int, ((U6 X Y) = (if (X <= 0) then Y else (F6 (U6 (X + - 1) Y))))))

Hypothesis H34 : (∀X ∈ int, ((V6 X) = (U6 G6 (H6 X))))

Hypothesis H35 : (∀X ∈ int, ((F4 X) = ((W5 X) + - (V6 X))))

Hypothesis H36 : (G4 = 1)

Hypothesis H37 : (∀X ∈ int, (∀Y ∈ int, ((H4 X Y) = Y)))

Hypothesis H38 : (∀X ∈ int, (∀Y ∈ int, ((U4 X Y) = (if (X <= 0) then Y else (F4 (U4 (X + - 1) Y))))))

Hypothesis H39 : (∀X ∈ int, (∀Y ∈ int, ((V4 X Y) = (U4 G4 (H4 X Y)))))

Hypothesis H40 : (∀X ∈ int, (∀Y ∈ int, ((F3 X Y) = (((((((V4 X Y) + X) + X) + X) + X) + X) + X))))

Hypothesis H41 : (∀X ∈ int, ((G3 X) = X))

Hypothesis H42 : (H3 = 1)

Hypothesis H43 : (∀X ∈ int, (∀Y ∈ int, ((U3 X Y) = (if (X <= 0) then Y else (F3 (U3 (X + - 1) Y) X)))))

Hypothesis H44 : (∀X ∈ int, ((V3 X) = (U3 (G3 X) H3)))

Hypothesis H45 : (∀X ∈ int, ((FAST X) = (V3 X)))

Theorem. (A20579)

(∀N ∈ int, ((0 <= N) → ((SMALL N) = (FAST N))))

In Proofgold the corresponding term root is 94fe88... and proposition id is 836e9c...

Proof:

The rest of the proof is missing.

End of Section A20579