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| Mirrors > Home > MPE Home > Th. List > 8t8e64 | Structured version Visualization version GIF version | ||
| Description: 8 times 8 equals 64. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 8t8e64 | ⊢ (8 · 8) = ;64 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 8nn0 12505 | . 2 ⊢ 8 ∈ ℕ0 | |
| 2 | 7nn0 12504 | . 2 ⊢ 7 ∈ ℕ0 | |
| 3 | df-8 12287 | . 2 ⊢ 8 = (7 + 1) | |
| 4 | 8t7e56 12814 | . 2 ⊢ (8 · 7) = ;56 | |
| 5 | 5nn0 12502 | . . 3 ⊢ 5 ∈ ℕ0 | |
| 6 | 6nn0 12503 | . . 3 ⊢ 6 ∈ ℕ0 | |
| 7 | eqid 2763 | . . 3 ⊢ ;56 = ;56 | |
| 8 | 5p1e6 12365 | . . 3 ⊢ (5 + 1) = 6 | |
| 9 | 4nn0 12501 | . . 3 ⊢ 4 ∈ ℕ0 | |
| 10 | 1 | nn0cni 12494 | . . . 4 ⊢ 8 ∈ ℂ |
| 11 | 6 | nn0cni 12494 | . . . 4 ⊢ 6 ∈ ℂ |
| 12 | 8p6e14 12778 | . . . 4 ⊢ (8 + 6) = ;14 | |
| 13 | 10, 11, 12 | addcomli 11376 | . . 3 ⊢ (6 + 8) = ;14 |
| 14 | 5, 6, 1, 7, 8, 9, 13 | decaddci 12755 | . 2 ⊢ (;56 + 8) = ;64 |
| 15 | 1, 2, 3, 4, 14 | 4t3lem 12791 | 1 ⊢ (8 · 8) = ;64 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1561 (class class class)co 7397 1c1 11075 · cmul 11079 4c4 12275 5c5 12276 6c6 12277 7c7 12278 8c8 12279 ;cdc 12689 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7719 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6289 df-ord 6350 df-on 6351 df-lim 6352 df-suc 6353 df-iota 6478 df-fun 6524 df-fn 6525 df-f 6526 df-f1 6527 df-fo 6528 df-f1o 6529 df-fv 6530 df-riota 7354 df-ov 7400 df-oprab 7401 df-mpo 7402 df-om 7848 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8382 df-er 8679 df-en 8929 df-dom 8930 df-sdom 8931 df-pnf 11219 df-mnf 11220 df-ltxr 11222 df-sub 11417 df-nn 12212 df-2 12281 df-3 12282 df-4 12283 df-5 12284 df-6 12285 df-7 12286 df-8 12287 df-9 12288 df-n0 12483 df-dec 12690 |
| This theorem is referenced by: 2exp6 17123 1259lem4 17171 bposlem8 27356 bposlem9 27357 hgt750lem2 34947 sq8 42907 resqrtvalex 44222 imsqrtvalex 44223 8exp8mod9 48359 |
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