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| Mirrors > Home > ILE Home > Th. List > 8t5e40 | GIF version | ||
| Description: 8 times 5 equals 40. (Contributed by Mario Carneiro, 19-Apr-2015.) (Revised by AV, 6-Sep-2021.) |
| Ref | Expression |
|---|---|
| 8t5e40 | ⊢ (8 · 5) = ;40 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 8nn0 9331 | . 2 ⊢ 8 ∈ ℕ0 | |
| 2 | 4nn0 9327 | . 2 ⊢ 4 ∈ ℕ0 | |
| 3 | df-5 9111 | . 2 ⊢ 5 = (4 + 1) | |
| 4 | 8t4e32 9633 | . 2 ⊢ (8 · 4) = ;32 | |
| 5 | 3nn0 9326 | . . 3 ⊢ 3 ∈ ℕ0 | |
| 6 | 2nn0 9325 | . . 3 ⊢ 2 ∈ ℕ0 | |
| 7 | eqid 2206 | . . 3 ⊢ ;32 = ;32 | |
| 8 | 3p1e4 9185 | . . 3 ⊢ (3 + 1) = 4 | |
| 9 | 8cn 9135 | . . . 4 ⊢ 8 ∈ ℂ | |
| 10 | 2cn 9120 | . . . 4 ⊢ 2 ∈ ℂ | |
| 11 | 8p2e10 9596 | . . . 4 ⊢ (8 + 2) = ;10 | |
| 12 | 9, 10, 11 | addcomli 8230 | . . 3 ⊢ (2 + 8) = ;10 |
| 13 | 5, 6, 1, 7, 8, 12 | decaddci2 9578 | . 2 ⊢ (;32 + 8) = ;40 |
| 14 | 1, 2, 3, 4, 13 | 4t3lem 9613 | 1 ⊢ (8 · 5) = ;40 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1373 (class class class)co 5954 0cc0 7938 1c1 7939 · cmul 7943 2c2 9100 3c3 9101 4c4 9102 5c5 9103 8c8 9106 ;cdc 9517 |
| 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 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-14 2180 ax-ext 2188 ax-sep 4167 ax-pow 4223 ax-pr 4258 ax-setind 4590 ax-cnex 8029 ax-resscn 8030 ax-1cn 8031 ax-1re 8032 ax-icn 8033 ax-addcl 8034 ax-addrcl 8035 ax-mulcl 8036 ax-addcom 8038 ax-mulcom 8039 ax-addass 8040 ax-mulass 8041 ax-distr 8042 ax-i2m1 8043 ax-1rid 8045 ax-0id 8046 ax-rnegex 8047 ax-cnre 8049 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ne 2378 df-ral 2490 df-rex 2491 df-reu 2492 df-rab 2494 df-v 2775 df-sbc 3001 df-dif 3170 df-un 3172 df-in 3174 df-ss 3181 df-pw 3620 df-sn 3641 df-pr 3642 df-op 3644 df-uni 3854 df-int 3889 df-br 4049 df-opab 4111 df-id 4345 df-xp 4686 df-rel 4687 df-cnv 4688 df-co 4689 df-dm 4690 df-iota 5238 df-fun 5279 df-fv 5285 df-riota 5909 df-ov 5957 df-oprab 5958 df-mpo 5959 df-sub 8258 df-inn 9050 df-2 9108 df-3 9109 df-4 9110 df-5 9111 df-6 9112 df-7 9113 df-8 9114 df-9 9115 df-n0 9309 df-dec 9518 |
| This theorem is referenced by: 8t6e48 9635 2exp11 12809 |
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