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| Mirrors > Home > MPE Home > Th. List > 8t7e56 | Structured version Visualization version GIF version | ||
| Description: 8 times 7 equals 56. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 8t7e56 | ⊢ (8 · 7) = ;56 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 8nn0 12455 | . 2 ⊢ 8 ∈ ℕ0 | |
| 2 | 6nn0 12453 | . 2 ⊢ 6 ∈ ℕ0 | |
| 3 | df-7 12244 | . 2 ⊢ 7 = (6 + 1) | |
| 4 | 8t6e48 12758 | . 2 ⊢ (8 · 6) = ;48 | |
| 5 | 4nn0 12451 | . . 3 ⊢ 4 ∈ ℕ0 | |
| 6 | eqid 2737 | . . 3 ⊢ ;48 = ;48 | |
| 7 | 4p1e5 12317 | . . 3 ⊢ (4 + 1) = 5 | |
| 8 | 8p8e16 12725 | . . 3 ⊢ (8 + 8) = ;16 | |
| 9 | 5, 1, 1, 6, 7, 2, 8 | decaddci 12700 | . 2 ⊢ (;48 + 8) = ;56 |
| 10 | 1, 2, 3, 4, 9 | 4t3lem 12736 | 1 ⊢ (8 · 7) = ;56 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7362 · cmul 11038 4c4 12233 5c5 12234 6c6 12235 7c7 12236 8c8 12237 ;cdc 12639 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5521 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-we 5581 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-pred 6261 df-ord 6322 df-on 6323 df-lim 6324 df-suc 6325 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-riota 7319 df-ov 7365 df-oprab 7366 df-mpo 7367 df-om 7813 df-2nd 7938 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-er 8638 df-en 8889 df-dom 8890 df-sdom 8891 df-pnf 11176 df-mnf 11177 df-ltxr 11179 df-sub 11374 df-nn 12170 df-2 12239 df-3 12240 df-4 12241 df-5 12242 df-6 12243 df-7 12244 df-8 12245 df-9 12246 df-n0 12433 df-dec 12640 |
| This theorem is referenced by: 8t8e64 12760 139prm 17089 317prm 17091 hgt750lem2 34816 139prmALT 48075 127prm 48078 |
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