Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > 9t3e27 | Unicode version |
Description: 9 times 3 equals 27. (Contributed by Mario Carneiro, 19-Apr-2015.) |
Ref | Expression |
---|---|
9t3e27 | ; |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 9nn0 9108 | . 2 | |
2 | 2nn0 9101 | . 2 | |
3 | df-3 8887 | . 2 | |
4 | 9t2e18 9410 | . 2 ; | |
5 | 1nn0 9100 | . . 3 | |
6 | 8nn0 9107 | . . 3 | |
7 | eqid 2157 | . . 3 ; ; | |
8 | 1p1e2 8944 | . . 3 | |
9 | 7nn0 9106 | . . 3 | |
10 | 1 | nn0cni 9096 | . . . 4 |
11 | 6 | nn0cni 9096 | . . . 4 |
12 | 9p8e17 9381 | . . . 4 ; | |
13 | 10, 11, 12 | addcomli 8014 | . . 3 ; |
14 | 5, 6, 1, 7, 8, 9, 13 | decaddci 9349 | . 2 ; ; |
15 | 1, 2, 3, 4, 14 | 4t3lem 9385 | 1 ; |
Colors of variables: wff set class |
Syntax hints: wceq 1335 (class class class)co 5821 c1 7727 cmul 7731 c2 8878 c3 8879 c7 8883 c8 8884 c9 8885 ;cdc 9289 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-14 2131 ax-ext 2139 ax-sep 4082 ax-pow 4135 ax-pr 4169 ax-setind 4495 ax-cnex 7817 ax-resscn 7818 ax-1cn 7819 ax-1re 7820 ax-icn 7821 ax-addcl 7822 ax-addrcl 7823 ax-mulcl 7824 ax-addcom 7826 ax-mulcom 7827 ax-addass 7828 ax-mulass 7829 ax-distr 7830 ax-i2m1 7831 ax-1rid 7833 ax-0id 7834 ax-rnegex 7835 ax-cnre 7837 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1338 df-fal 1341 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-ral 2440 df-rex 2441 df-reu 2442 df-rab 2444 df-v 2714 df-sbc 2938 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-pw 3545 df-sn 3566 df-pr 3567 df-op 3569 df-uni 3773 df-int 3808 df-br 3966 df-opab 4026 df-id 4253 df-xp 4591 df-rel 4592 df-cnv 4593 df-co 4594 df-dm 4595 df-iota 5134 df-fun 5171 df-fv 5177 df-riota 5777 df-ov 5824 df-oprab 5825 df-mpo 5826 df-sub 8042 df-inn 8828 df-2 8886 df-3 8887 df-4 8888 df-5 8889 df-6 8890 df-7 8891 df-8 8892 df-9 8893 df-n0 9085 df-dec 9290 |
This theorem is referenced by: 9t4e36 9412 |
Copyright terms: Public domain | W3C validator |