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| Mirrors > Home > MPE Home > Th. List > 4t3lem | Structured version Visualization version GIF version | ||
| Description: Lemma for 4t3e12 12839 and related theorems. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 4t3lem.1 | ⊢ 𝐴 ∈ ℕ0 |
| 4t3lem.2 | ⊢ 𝐵 ∈ ℕ0 |
| 4t3lem.3 | ⊢ 𝐶 = (𝐵 + 1) |
| 4t3lem.4 | ⊢ (𝐴 · 𝐵) = 𝐷 |
| 4t3lem.5 | ⊢ (𝐷 + 𝐴) = 𝐸 |
| Ref | Expression |
|---|---|
| 4t3lem | ⊢ (𝐴 · 𝐶) = 𝐸 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 4t3lem.3 | . . 3 ⊢ 𝐶 = (𝐵 + 1) | |
| 2 | 1 | oveq2i 7424 | . 2 ⊢ (𝐴 · 𝐶) = (𝐴 · (𝐵 + 1)) |
| 3 | 4t3lem.1 | . . . . . 6 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | 3 | nn0cni 12540 | . . . . 5 ⊢ 𝐴 ∈ ℂ |
| 5 | 4t3lem.2 | . . . . . 6 ⊢ 𝐵 ∈ ℕ0 | |
| 6 | 5 | nn0cni 12540 | . . . . 5 ⊢ 𝐵 ∈ ℂ |
| 7 | ax-1cn 11182 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 8 | 4, 6, 7 | adddii 11245 | . . . 4 ⊢ (𝐴 · (𝐵 + 1)) = ((𝐴 · 𝐵) + (𝐴 · 1)) |
| 9 | 4t3lem.4 | . . . . 5 ⊢ (𝐴 · 𝐵) = 𝐷 | |
| 10 | 4 | mulridi 11237 | . . . . 5 ⊢ (𝐴 · 1) = 𝐴 |
| 11 | 9, 10 | oveq12i 7425 | . . . 4 ⊢ ((𝐴 · 𝐵) + (𝐴 · 1)) = (𝐷 + 𝐴) |
| 12 | 8, 11 | eqtri 2783 | . . 3 ⊢ (𝐴 · (𝐵 + 1)) = (𝐷 + 𝐴) |
| 13 | 4t3lem.5 | . . 3 ⊢ (𝐷 + 𝐴) = 𝐸 | |
| 14 | 12, 13 | eqtri 2783 | . 2 ⊢ (𝐴 · (𝐵 + 1)) = 𝐸 |
| 15 | 2, 14 | eqtri 2783 | 1 ⊢ (𝐴 · 𝐶) = 𝐸 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 (class class class)co 7413 1c1 11125 + caddc 11127 · cmul 11129 ℕ0cn0 12528 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pr 5398 ax-un 7736 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-mulcl 11186 ax-mulcom 11188 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1rid 11194 ax-cnre 11197 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-ov 7416 df-om 7863 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-nn 12258 df-n0 12529 |
| This theorem is used by: 4t3e12 12839 4t4e16 12840 5t2e10 12841 5t3e15 12842 5t4e20 12843 5t5e25 12844 6t3e18 12846 6t4e24 12847 6t5e30 12848 6t6e36 12849 7t3e21 12851 7t4e28 12852 7t5e35 12853 7t6e42 12854 7t7e49 12855 8t3e24 12857 8t4e32 12858 8t5e40 12859 8t6e48 12860 8t7e56 12861 8t8e64 12862 9t3e27 12864 9t4e36 12865 9t5e45 12866 9t6e54 12867 9t7e63 12868 9t8e72 12869 9t9e81 12870 |
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