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| Mirrors > Home > MPE Home > Th. List > 4t3lem | Structured version Visualization version GIF version | ||
| Description: Lemma for 4t3e12 12921 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 7432 | . 2 ⊢ (𝐴 · 𝐶) = (𝐴 · (𝐵 + 1)) |
| 3 | 4t3lem.1 | . . . . . 6 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | 3 | nn0cni 12622 | . . . . 5 ⊢ 𝐴 ∈ ℂ |
| 5 | 4t3lem.2 | . . . . . 6 ⊢ 𝐵 ∈ ℕ0 | |
| 6 | 5 | nn0cni 12622 | . . . . 5 ⊢ 𝐵 ∈ ℂ |
| 7 | ax-1cn 11262 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 8 | 4, 6, 7 | adddii 11325 | . . . 4 ⊢ (𝐴 · (𝐵 + 1)) = ((𝐴 · 𝐵) + (𝐴 · 1)) |
| 9 | 4t3lem.4 | . . . . 5 ⊢ (𝐴 · 𝐵) = 𝐷 | |
| 10 | 4 | mulridi 11317 | . . . . 5 ⊢ (𝐴 · 1) = 𝐴 |
| 11 | 9, 10 | oveq12i 7433 | . . . 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 1569 ∈ wcel 2144 (class class class)co 7421 1c1 11205 + caddc 11207 · cmul 11209 ℕ0cn0 12610 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-un 7752 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-mulcl 11266 ax-mulcom 11268 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1rid 11274 ax-cnre 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-ov 7424 df-om 7879 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-nn 12340 df-n0 12611 |
| This theorem is used by: 4t3e12 12921 4t4e16 12922 5t2e10 12923 5t3e15 12924 5t4e20 12925 5t5e25 12926 6t3e18 12928 6t4e24 12929 6t5e30 12930 6t6e36 12931 7t3e21 12933 7t4e28 12934 7t5e35 12935 7t6e42 12936 7t7e49 12937 8t3e24 12939 8t4e32 12940 8t5e40 12941 8t6e48 12942 8t7e56 12943 8t8e64 12944 9t3e27 12946 9t4e36 12947 9t5e45 12948 9t6e54 12949 9t7e63 12950 9t8e72 12951 9t9e81 12952 |
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