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| Mirrors > Home > ILE Home > Th. List > 6t3e18 | GIF version | ||
| Description: 6 times 3 equals 18. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 6t3e18 | ⊢ (6 · 3) = ;18 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 6nn0 9522 | . 2 ⊢ 6 ∈ ℕ0 | |
| 2 | 2nn0 9518 | . 2 ⊢ 2 ∈ ℕ0 | |
| 3 | df-3 9302 | . 2 ⊢ 3 = (2 + 1) | |
| 4 | 6t2e12 9818 | . 2 ⊢ (6 · 2) = ;12 | |
| 5 | 1nn0 9517 | . . 3 ⊢ 1 ∈ ℕ0 | |
| 6 | eqid 2234 | . . 3 ⊢ ;12 = ;12 | |
| 7 | 6cn 9324 | . . . 4 ⊢ 6 ∈ ℂ | |
| 8 | 2cn 9313 | . . . 4 ⊢ 2 ∈ ℂ | |
| 9 | 6p2e8 9392 | . . . 4 ⊢ (6 + 2) = 8 | |
| 10 | 7, 8, 9 | addcomli 8423 | . . 3 ⊢ (2 + 6) = 8 |
| 11 | 5, 2, 1, 6, 10 | decaddi 9774 | . 2 ⊢ (;12 + 6) = ;18 |
| 12 | 1, 2, 3, 4, 11 | 4t3lem 9811 | 1 ⊢ (6 · 3) = ;18 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 (class class class)co 6052 1c1 8133 · cmul 8137 2c2 9293 3c3 9294 6c6 9297 8c8 9299 ;cdc 9715 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-setind 4661 ax-cnex 8223 ax-resscn 8224 ax-1cn 8225 ax-1re 8226 ax-icn 8227 ax-addcl 8228 ax-addrcl 8229 ax-mulcl 8230 ax-addcom 8232 ax-mulcom 8233 ax-addass 8234 ax-mulass 8235 ax-distr 8236 ax-i2m1 8237 ax-1rid 8239 ax-0id 8240 ax-rnegex 8241 ax-cnre 8243 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3045 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-opab 4174 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-iota 5314 df-fun 5356 df-fv 5362 df-riota 6005 df-ov 6055 df-oprab 6056 df-mpo 6057 df-sub 8451 df-inn 9243 df-2 9301 df-3 9302 df-4 9303 df-5 9304 df-6 9305 df-7 9306 df-8 9307 df-9 9308 df-n0 9502 df-dec 9716 |
| This theorem is referenced by: 6t4e24 9820 |
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