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| Mirrors > Home > ILE Home > Th. List > 9t6e54 | GIF version | ||
| Description: 9 times 6 equals 54. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 9t6e54 | ⊢ (9 · 6) = ;54 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 9nn0 9520 | . 2 ⊢ 9 ∈ ℕ0 | |
| 2 | 5nn0 9516 | . 2 ⊢ 5 ∈ ℕ0 | |
| 3 | df-6 9300 | . 2 ⊢ 6 = (5 + 1) | |
| 4 | 9t5e45 9833 | . 2 ⊢ (9 · 5) = ;45 | |
| 5 | 4nn0 9515 | . . 3 ⊢ 4 ∈ ℕ0 | |
| 6 | eqid 2232 | . . 3 ⊢ ;45 = ;45 | |
| 7 | 4p1e5 9374 | . . 3 ⊢ (4 + 1) = 5 | |
| 8 | 1 | nn0cni 9508 | . . . 4 ⊢ 9 ∈ ℂ |
| 9 | 2 | nn0cni 9508 | . . . 4 ⊢ 5 ∈ ℂ |
| 10 | 9p5e14 9798 | . . . 4 ⊢ (9 + 5) = ;14 | |
| 11 | 8, 9, 10 | addcomli 8418 | . . 3 ⊢ (5 + 9) = ;14 |
| 12 | 5, 2, 1, 6, 7, 5, 11 | decaddci 9769 | . 2 ⊢ (;45 + 9) = ;54 |
| 13 | 1, 2, 3, 4, 12 | 4t3lem 9805 | 1 ⊢ (9 · 6) = ;54 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 (class class class)co 6050 1c1 8128 · cmul 8132 4c4 9290 5c5 9291 6c6 9292 9c9 9295 ;cdc 9709 |
| 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 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 ax-setind 4659 ax-cnex 8218 ax-resscn 8219 ax-1cn 8220 ax-1re 8221 ax-icn 8222 ax-addcl 8223 ax-addrcl 8224 ax-mulcl 8225 ax-addcom 8227 ax-mulcom 8228 ax-addass 8229 ax-mulass 8230 ax-distr 8231 ax-i2m1 8232 ax-1rid 8234 ax-0id 8235 ax-rnegex 8236 ax-cnre 8238 |
| 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 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2815 df-sbc 3043 df-dif 3213 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-int 3950 df-br 4110 df-opab 4172 df-id 4414 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-iota 5312 df-fun 5354 df-fv 5360 df-riota 6003 df-ov 6053 df-oprab 6054 df-mpo 6055 df-sub 8446 df-inn 9238 df-2 9296 df-3 9297 df-4 9298 df-5 9299 df-6 9300 df-7 9301 df-8 9302 df-9 9303 df-n0 9497 df-dec 9710 |
| This theorem is referenced by: 9t7e63 9835 |
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