| Mathbox for Alexander van der Vekens |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > zlmodzxzldeplem4 | Structured version Visualization version GIF version | ||
| Description: Lemma 4 for zlmodzxzldep 49532. (Contributed by AV, 24-May-2019.) (Revised by AV, 10-Jun-2019.) |
| Ref | Expression |
|---|---|
| zlmodzxzldep.z | ⊢ 𝑍 = (ℤring freeLMod {0, 1}) |
| zlmodzxzldep.a | ⊢ 𝐴 = {〈0, 3〉, 〈1, 6〉} |
| zlmodzxzldep.b | ⊢ 𝐵 = {〈0, 2〉, 〈1, 4〉} |
| zlmodzxzldeplem.f | ⊢ 𝐹 = {〈𝐴, 2〉, 〈𝐵, -3〉} |
| Ref | Expression |
|---|---|
| zlmodzxzldeplem4 | ⊢ ∃𝑦 ∈ {𝐴, 𝐵} (𝐹‘𝑦) ≠ 0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zlmodzxzldep.a | . . 3 ⊢ 𝐴 = {〈0, 3〉, 〈1, 6〉} | |
| 2 | prex 5396 | . . 3 ⊢ {〈0, 3〉, 〈1, 6〉} ∈ V | |
| 3 | 1, 2 | eqeltri 2856 | . 2 ⊢ 𝐴 ∈ V |
| 4 | zlmodzxzldep.b | . . 3 ⊢ 𝐵 = {〈0, 2〉, 〈1, 4〉} | |
| 5 | prex 5396 | . . 3 ⊢ {〈0, 2〉, 〈1, 4〉} ∈ V | |
| 6 | 4, 5 | eqeltri 2856 | . 2 ⊢ 𝐵 ∈ V |
| 7 | 2ne0 12404 | . . . . 5 ⊢ 2 ≠ 0 | |
| 8 | zlmodzxzldeplem.f | . . . . . . . 8 ⊢ 𝐹 = {〈𝐴, 2〉, 〈𝐵, -3〉} | |
| 9 | 8 | fveq1i 6875 | . . . . . . 7 ⊢ (𝐹‘𝐴) = ({〈𝐴, 2〉, 〈𝐵, -3〉}‘𝐴) |
| 10 | zlmodzxzldep.z | . . . . . . . . 9 ⊢ 𝑍 = (ℤring freeLMod {0, 1}) | |
| 11 | 10, 1, 4 | zlmodzxzldeplem 49526 | . . . . . . . 8 ⊢ 𝐴 ≠ 𝐵 |
| 12 | 2ex 12375 | . . . . . . . . 9 ⊢ 2 ∈ V | |
| 13 | 3, 12 | fvpr1 7186 | . . . . . . . 8 ⊢ (𝐴 ≠ 𝐵 → ({〈𝐴, 2〉, 〈𝐵, -3〉}‘𝐴) = 2) |
| 14 | 11, 13 | mp1i 14 | . . . . . . 7 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → ({〈𝐴, 2〉, 〈𝐵, -3〉}‘𝐴) = 2) |
| 15 | 9, 14 | eqtrid 2807 | . . . . . 6 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐹‘𝐴) = 2) |
| 16 | 15 | neeq1d 3014 | . . . . 5 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → ((𝐹‘𝐴) ≠ 0 ↔ 2 ≠ 0)) |
| 17 | 7, 16 | mpbiri 261 | . . . 4 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐹‘𝐴) ≠ 0) |
| 18 | 17 | orcd 887 | . . 3 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → ((𝐹‘𝐴) ≠ 0 ∨ (𝐹‘𝐵) ≠ 0)) |
| 19 | fveq2 6874 | . . . . 5 ⊢ (𝑦 = 𝐴 → (𝐹‘𝑦) = (𝐹‘𝐴)) | |
| 20 | 19 | neeq1d 3014 | . . . 4 ⊢ (𝑦 = 𝐴 → ((𝐹‘𝑦) ≠ 0 ↔ (𝐹‘𝐴) ≠ 0)) |
| 21 | fveq2 6874 | . . . . 5 ⊢ (𝑦 = 𝐵 → (𝐹‘𝑦) = (𝐹‘𝐵)) | |
| 22 | 21 | neeq1d 3014 | . . . 4 ⊢ (𝑦 = 𝐵 → ((𝐹‘𝑦) ≠ 0 ↔ (𝐹‘𝐵) ≠ 0)) |
| 23 | 20, 22 | rexprg 4658 | . . 3 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (∃𝑦 ∈ {𝐴, 𝐵} (𝐹‘𝑦) ≠ 0 ↔ ((𝐹‘𝐴) ≠ 0 ∨ (𝐹‘𝐵) ≠ 0))) |
| 24 | 18, 23 | mpbird 260 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → ∃𝑦 ∈ {𝐴, 𝐵} (𝐹‘𝑦) ≠ 0) |
| 25 | 3, 6, 24 | mp2an 705 | 1 ⊢ ∃𝑦 ∈ {𝐴, 𝐵} (𝐹‘𝑦) ≠ 0 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ wa 401 ∨ wo 861 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 ∃wrex 3086 Vcvv 3450 {cpr 4586 〈cop 4590 ‘cfv 6528 (class class class)co 7409 0cc0 11157 1c1 11158 -cneg 11499 2c2 12352 3c3 12353 4c4 12354 6c6 12356 ℤringczring 21699 freeLMod cfrlm 21999 |
| 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 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7735 ax-resscn 11214 ax-1cn 11215 ax-icn 11216 ax-addcl 11217 ax-addrcl 11218 ax-mulcl 11219 ax-mulrcl 11220 ax-mulcom 11221 ax-addass 11222 ax-mulass 11223 ax-distr 11224 ax-i2m1 11225 ax-1ne0 11226 ax-1rid 11227 ax-rnegex 11228 ax-rrecex 11229 ax-cnre 11230 ax-pre-lttri 11231 ax-pre-lttrn 11232 ax-pre-ltadd 11233 ax-pre-mulgt0 11234 |
| 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-nel 3062 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 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6294 df-ord 6355 df-on 6356 df-lim 6357 df-suc 6358 df-iota 6484 df-fun 6530 df-fn 6531 df-f 6532 df-f1 6533 df-fo 6534 df-f1o 6535 df-fv 6536 df-riota 7366 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7862 df-2nd 7986 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11302 df-mnf 11303 df-xr 11304 df-ltxr 11305 df-le 11306 df-sub 11500 df-neg 11501 df-nn 12291 df-2 12360 df-3 12361 |
| This theorem is used by: zlmodzxzldep 49532 |
| Copyright terms: Public domain | W3C validator |