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| Mirrors > Home > MPE Home > Th. List > zriotaneg | Structured version Visualization version GIF version | ||
| Description: The negative of the unique integer such that 𝜑. (Contributed by AV, 1-Dec-2018.) |
| Ref | Expression |
|---|---|
| zriotaneg.1 | ⊢ (𝑥 = -𝑦 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| zriotaneg | ⊢ (∃!𝑥 ∈ ℤ 𝜑 → (℩𝑥 ∈ ℤ 𝜑) = -(℩𝑦 ∈ ℤ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tru 1572 | . 2 ⊢ ⊤ | |
| 2 | nfriota1 7378 | . . . 4 ⊢ Ⅎ𝑦(℩𝑦 ∈ ℤ 𝜓) | |
| 3 | 2 | nfneg 11456 | . . 3 ⊢ Ⅎ𝑦-(℩𝑦 ∈ ℤ 𝜓) |
| 4 | znegcl 12632 | . . . 4 ⊢ (𝑦 ∈ ℤ → -𝑦 ∈ ℤ) | |
| 5 | 4 | adantl 486 | . . 3 ⊢ ((⊤ ∧ 𝑦 ∈ ℤ) → -𝑦 ∈ ℤ) |
| 6 | simpr 489 | . . . 4 ⊢ ((⊤ ∧ (℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) → (℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) | |
| 7 | 6 | znegcld 12705 | . . 3 ⊢ ((⊤ ∧ (℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) → -(℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) |
| 8 | zriotaneg.1 | . . 3 ⊢ (𝑥 = -𝑦 → (𝜑 ↔ 𝜓)) | |
| 9 | negeq 11452 | . . 3 ⊢ (𝑦 = (℩𝑦 ∈ ℤ 𝜓) → -𝑦 = -(℩𝑦 ∈ ℤ 𝜓)) | |
| 10 | znegcl 12632 | . . . . 5 ⊢ (𝑥 ∈ ℤ → -𝑥 ∈ ℤ) | |
| 11 | zcn 12599 | . . . . . 6 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℂ) | |
| 12 | zcn 12599 | . . . . . 6 ⊢ (𝑦 ∈ ℤ → 𝑦 ∈ ℂ) | |
| 13 | negcon2 11514 | . . . . . 6 ⊢ ((𝑥 ∈ ℂ ∧ 𝑦 ∈ ℂ) → (𝑥 = -𝑦 ↔ 𝑦 = -𝑥)) | |
| 14 | 11, 12, 13 | syl2an 607 | . . . . 5 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → (𝑥 = -𝑦 ↔ 𝑦 = -𝑥)) |
| 15 | 10, 14 | reuhyp 5395 | . . . 4 ⊢ (𝑥 ∈ ℤ → ∃!𝑦 ∈ ℤ 𝑥 = -𝑦) |
| 16 | 15 | adantl 486 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ ℤ) → ∃!𝑦 ∈ ℤ 𝑥 = -𝑦) |
| 17 | 3, 5, 7, 8, 9, 16 | riotaxfrd 7405 | . 2 ⊢ ((⊤ ∧ ∃!𝑥 ∈ ℤ 𝜑) → (℩𝑥 ∈ ℤ 𝜑) = -(℩𝑦 ∈ ℤ 𝜓)) |
| 18 | 1, 17 | mpan 702 | 1 ⊢ (∃!𝑥 ∈ ℤ 𝜑 → (℩𝑥 ∈ ℤ 𝜑) = -(℩𝑦 ∈ ℤ 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1568 ⊤wtru 1569 ∈ wcel 2150 ∃!wreu 3374 ℩crio 7370 ℂcc 11101 -cneg 11445 ℤcz 12594 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pow 5340 ax-pr 5408 ax-un 7736 ax-resscn 11160 ax-1cn 11161 ax-icn 11162 ax-addcl 11163 ax-addrcl 11164 ax-mulcl 11165 ax-mulrcl 11166 ax-mulcom 11167 ax-addass 11168 ax-mulass 11169 ax-distr 11170 ax-i2m1 11171 ax-1ne0 11172 ax-1rid 11173 ax-rnegex 11174 ax-rrecex 11175 ax-cnre 11176 ax-pre-lttri 11177 ax-pre-lttrn 11178 ax-pre-ltadd 11179 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-nel 3072 df-ral 3087 df-rex 3097 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3464 df-sbc 3753 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5560 df-eprel 5565 df-po 5573 df-so 5574 df-fr 5618 df-we 5620 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7866 df-2nd 7990 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-er 8697 df-en 8947 df-dom 8948 df-sdom 8949 df-pnf 11248 df-mnf 11249 df-ltxr 11251 df-sub 11446 df-neg 11447 df-nn 12237 df-z 12595 |
| This theorem is referenced by: dfceil2 13875 |
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