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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 11505 | . 2 ⊢ 8 ∈ ℕ0 | |
2 | 6nn0 11503 | . 2 ⊢ 6 ∈ ℕ0 | |
3 | df-7 11274 | . 2 ⊢ 7 = (6 + 1) | |
4 | 8t6e48 11849 | . 2 ⊢ (8 · 6) = ;48 | |
5 | 4nn0 11501 | . . 3 ⊢ 4 ∈ ℕ0 | |
6 | eqid 2758 | . . 3 ⊢ ;48 = ;48 | |
7 | 4p1e5 11344 | . . 3 ⊢ (4 + 1) = 5 | |
8 | 8p8e16 11808 | . . 3 ⊢ (8 + 8) = ;16 | |
9 | 5, 1, 1, 6, 7, 2, 8 | decaddci 11770 | . 2 ⊢ (;48 + 8) = ;56 |
10 | 1, 2, 3, 4, 9 | 4t3lem 11821 | 1 ⊢ (8 · 7) = ;56 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1630 (class class class)co 6811 · cmul 10131 4c4 11262 5c5 11263 6c6 11264 7c7 11265 8c8 11266 ;cdc 11683 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1869 ax-4 1884 ax-5 1986 ax-6 2052 ax-7 2088 ax-8 2139 ax-9 2146 ax-10 2166 ax-11 2181 ax-12 2194 ax-13 2389 ax-ext 2738 ax-sep 4931 ax-nul 4939 ax-pow 4990 ax-pr 5053 ax-un 7112 ax-resscn 10183 ax-1cn 10184 ax-icn 10185 ax-addcl 10186 ax-addrcl 10187 ax-mulcl 10188 ax-mulrcl 10189 ax-mulcom 10190 ax-addass 10191 ax-mulass 10192 ax-distr 10193 ax-i2m1 10194 ax-1ne0 10195 ax-1rid 10196 ax-rnegex 10197 ax-rrecex 10198 ax-cnre 10199 ax-pre-lttri 10200 ax-pre-lttrn 10201 ax-pre-ltadd 10202 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1073 df-3an 1074 df-tru 1633 df-ex 1852 df-nf 1857 df-sb 2045 df-eu 2609 df-mo 2610 df-clab 2745 df-cleq 2751 df-clel 2754 df-nfc 2889 df-ne 2931 df-nel 3034 df-ral 3053 df-rex 3054 df-reu 3055 df-rab 3057 df-v 3340 df-sbc 3575 df-csb 3673 df-dif 3716 df-un 3718 df-in 3720 df-ss 3727 df-pss 3729 df-nul 4057 df-if 4229 df-pw 4302 df-sn 4320 df-pr 4322 df-tp 4324 df-op 4326 df-uni 4587 df-iun 4672 df-br 4803 df-opab 4863 df-mpt 4880 df-tr 4903 df-id 5172 df-eprel 5177 df-po 5185 df-so 5186 df-fr 5223 df-we 5225 df-xp 5270 df-rel 5271 df-cnv 5272 df-co 5273 df-dm 5274 df-rn 5275 df-res 5276 df-ima 5277 df-pred 5839 df-ord 5885 df-on 5886 df-lim 5887 df-suc 5888 df-iota 6010 df-fun 6049 df-fn 6050 df-f 6051 df-f1 6052 df-fo 6053 df-f1o 6054 df-fv 6055 df-riota 6772 df-ov 6814 df-oprab 6815 df-mpt2 6816 df-om 7229 df-wrecs 7574 df-recs 7635 df-rdg 7673 df-er 7909 df-en 8120 df-dom 8121 df-sdom 8122 df-pnf 10266 df-mnf 10267 df-ltxr 10269 df-sub 10458 df-nn 11211 df-2 11269 df-3 11270 df-4 11271 df-5 11272 df-6 11273 df-7 11274 df-8 11275 df-9 11276 df-n0 11483 df-dec 11684 |
This theorem is referenced by: 8t8e64 11852 139prm 16031 317prm 16033 hgt750lem2 31037 139prmALT 42019 127prm 42023 |
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