Proof of Theorem 3exp7
| Step | Hyp | Ref
| Expression |
| 1 | | 3nn0 12517 |
. 2
⊢ 3 ∈
ℕ0 |
| 2 | | 6nn0 12520 |
. 2
⊢ 6 ∈
ℕ0 |
| 3 | | 6p1e7 12383 |
. 2
⊢ (6 + 1) =
7 |
| 4 | | 7nn0 12521 |
. . . 4
⊢ 7 ∈
ℕ0 |
| 5 | | 2nn0 12516 |
. . . 4
⊢ 2 ∈
ℕ0 |
| 6 | 4, 5 | deccl 12721 |
. . 3
⊢ ;72 ∈
ℕ0 |
| 7 | | 9nn0 12523 |
. . 3
⊢ 9 ∈
ℕ0 |
| 8 | | 2t3e6 12402 |
. . . 4
⊢ (2
· 3) = 6 |
| 9 | | 3exp3 17146 |
. . . 4
⊢
(3↑3) = ;27 |
| 10 | 5, 4 | deccl 12721 |
. . . . 5
⊢ ;27 ∈
ℕ0 |
| 11 | | eqid 2763 |
. . . . 5
⊢ ;27 = ;27 |
| 12 | | 1nn0 12515 |
. . . . . 6
⊢ 1 ∈
ℕ0 |
| 13 | | 8nn0 12522 |
. . . . . 6
⊢ 8 ∈
ℕ0 |
| 14 | 12, 13 | deccl 12721 |
. . . . 5
⊢ ;18 ∈
ℕ0 |
| 15 | | 0nn0 12514 |
. . . . . 6
⊢ 0 ∈
ℕ0 |
| 16 | 5 | dec0h 12733 |
. . . . . 6
⊢ 2 = ;02 |
| 17 | | eqid 2763 |
. . . . . 6
⊢ ;18 = ;18 |
| 18 | 10 | nn0cni 12511 |
. . . . . . . . 9
⊢ ;27 ∈ ℂ |
| 19 | 18 | mul02i 11394 |
. . . . . . . 8
⊢ (0
· ;27) = 0 |
| 20 | | 6cn 12327 |
. . . . . . . . 9
⊢ 6 ∈
ℂ |
| 21 | | ax-1cn 11153 |
. . . . . . . . 9
⊢ 1 ∈
ℂ |
| 22 | 20, 21, 3 | addcomli 11397 |
. . . . . . . 8
⊢ (1 + 6) =
7 |
| 23 | 19, 22 | oveq12i 7422 |
. . . . . . 7
⊢ ((0
· ;27) + (1 + 6)) = (0 +
7) |
| 24 | | 7cn 12330 |
. . . . . . . 8
⊢ 7 ∈
ℂ |
| 25 | 24 | addlidi 11393 |
. . . . . . 7
⊢ (0 + 7) =
7 |
| 26 | 23, 25 | eqtri 2786 |
. . . . . 6
⊢ ((0
· ;27) + (1 + 6)) =
7 |
| 27 | 13 | dec0h 12733 |
. . . . . . 7
⊢ 8 = ;08 |
| 28 | | 2t2e4 12399 |
. . . . . . . . 9
⊢ (2
· 2) = 4 |
| 29 | | 2cn 12311 |
. . . . . . . . . 10
⊢ 2 ∈
ℂ |
| 30 | 29 | addlidi 11393 |
. . . . . . . . 9
⊢ (0 + 2) =
2 |
| 31 | 28, 30 | oveq12i 7422 |
. . . . . . . 8
⊢ ((2
· 2) + (0 + 2)) = (4 + 2) |
| 32 | | 4p2e6 12388 |
. . . . . . . 8
⊢ (4 + 2) =
6 |
| 33 | 31, 32 | eqtri 2786 |
. . . . . . 7
⊢ ((2
· 2) + (0 + 2)) = 6 |
| 34 | | 4nn0 12518 |
. . . . . . . 8
⊢ 4 ∈
ℕ0 |
| 35 | | 7t2e14 12820 |
. . . . . . . . 9
⊢ (7
· 2) = ;14 |
| 36 | 24, 29, 35 | mulcomli 11213 |
. . . . . . . 8
⊢ (2
· 7) = ;14 |
| 37 | | 1p1e2 12359 |
. . . . . . . 8
⊢ (1 + 1) =
2 |
| 38 | | 8cn 12333 |
. . . . . . . . 9
⊢ 8 ∈
ℂ |
| 39 | | 4cn 12321 |
. . . . . . . . 9
⊢ 4 ∈
ℂ |
| 40 | | 8p4e12 12793 |
. . . . . . . . 9
⊢ (8 + 4) =
;12 |
| 41 | 38, 39, 40 | addcomli 11397 |
. . . . . . . 8
⊢ (4 + 8) =
;12 |
| 42 | 12, 34, 13, 36, 37, 5, 41 | decaddci 12772 |
. . . . . . 7
⊢ ((2
· 7) + 8) = ;22 |
| 43 | 5, 4, 15, 13, 11, 27, 5, 5, 5,
33, 42 | decma2c 12764 |
. . . . . 6
⊢ ((2
· ;27) + 8) = ;62 |
| 44 | 15, 5, 12, 13, 16, 17, 10, 5, 2, 26, 43 | decmac 12763 |
. . . . 5
⊢ ((2
· ;27) + ;18) = ;72 |
| 45 | | 4p4e8 12390 |
. . . . . . 7
⊢ (4 + 4) =
8 |
| 46 | 12, 34, 34, 35, 45 | decaddi 12771 |
. . . . . 6
⊢ ((7
· 2) + 4) = ;18 |
| 47 | | 7t7e49 12825 |
. . . . . 6
⊢ (7
· 7) = ;49 |
| 48 | 4, 5, 4, 11, 7, 34, 46, 47 | decmul2c 12777 |
. . . . 5
⊢ (7
· ;27) = ;;189 |
| 49 | 10, 5, 4, 11, 7, 14, 44, 48 | decmul1c 12776 |
. . . 4
⊢ (;27 · ;27) = ;;729 |
| 50 | 1, 1, 8, 9, 49 | numexp2x 17133 |
. . 3
⊢
(3↑6) = ;;729 |
| 51 | | eqid 2763 |
. . . 4
⊢ ;72 = ;72 |
| 52 | | 7t3e21 12821 |
. . . . 5
⊢ (7
· 3) = ;21 |
| 53 | | 1p0e1 12358 |
. . . . 5
⊢ (1 + 0) =
1 |
| 54 | 5, 12, 15, 52, 53 | decaddi 12771 |
. . . 4
⊢ ((7
· 3) + 0) = ;21 |
| 55 | 8 | oveq1i 7420 |
. . . . 5
⊢ ((2
· 3) + 2) = (6 + 2) |
| 56 | | 6p2e8 12394 |
. . . . 5
⊢ (6 + 2) =
8 |
| 57 | 55, 56 | eqtri 2786 |
. . . 4
⊢ ((2
· 3) + 2) = 8 |
| 58 | 4, 5, 15, 5, 51, 16, 1, 54, 57 | decma 12762 |
. . 3
⊢ ((;72 · 3) + 2) = ;;218 |
| 59 | | 9t3e27 12834 |
. . 3
⊢ (9
· 3) = ;27 |
| 60 | 1, 6, 7, 50, 4, 5,
58, 59 | decmul1c 12776 |
. 2
⊢
((3↑6) · 3) = ;;;2187 |
| 61 | 1, 2, 3, 60 | numexpp1 17132 |
1
⊢
(3↑7) = ;;;2187 |