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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 1546 | . 2 ⊢ ⊤ | |
| 2 | nfriota1 7326 | . . . 4 ⊢ Ⅎ𝑦(℩𝑦 ∈ ℤ 𝜓) | |
| 3 | 2 | nfneg 11384 | . . 3 ⊢ Ⅎ𝑦-(℩𝑦 ∈ ℤ 𝜓) |
| 4 | znegcl 12557 | . . . 4 ⊢ (𝑦 ∈ ℤ → -𝑦 ∈ ℤ) | |
| 5 | 4 | adantl 481 | . . 3 ⊢ ((⊤ ∧ 𝑦 ∈ ℤ) → -𝑦 ∈ ℤ) |
| 6 | simpr 484 | . . . 4 ⊢ ((⊤ ∧ (℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) → (℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) | |
| 7 | 6 | znegcld 12630 | . . 3 ⊢ ((⊤ ∧ (℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) → -(℩𝑦 ∈ ℤ 𝜓) ∈ ℤ) |
| 8 | zriotaneg.1 | . . 3 ⊢ (𝑥 = -𝑦 → (𝜑 ↔ 𝜓)) | |
| 9 | negeq 11380 | . . 3 ⊢ (𝑦 = (℩𝑦 ∈ ℤ 𝜓) → -𝑦 = -(℩𝑦 ∈ ℤ 𝜓)) | |
| 10 | znegcl 12557 | . . . . 5 ⊢ (𝑥 ∈ ℤ → -𝑥 ∈ ℤ) | |
| 11 | zcn 12524 | . . . . . 6 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℂ) | |
| 12 | zcn 12524 | . . . . . 6 ⊢ (𝑦 ∈ ℤ → 𝑦 ∈ ℂ) | |
| 13 | negcon2 11442 | . . . . . 6 ⊢ ((𝑥 ∈ ℂ ∧ 𝑦 ∈ ℂ) → (𝑥 = -𝑦 ↔ 𝑦 = -𝑥)) | |
| 14 | 11, 12, 13 | syl2an 597 | . . . . 5 ⊢ ((𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ) → (𝑥 = -𝑦 ↔ 𝑦 = -𝑥)) |
| 15 | 10, 14 | reuhyp 5359 | . . . 4 ⊢ (𝑥 ∈ ℤ → ∃!𝑦 ∈ ℤ 𝑥 = -𝑦) |
| 16 | 15 | adantl 481 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ ℤ) → ∃!𝑦 ∈ ℤ 𝑥 = -𝑦) |
| 17 | 3, 5, 7, 8, 9, 16 | riotaxfrd 7353 | . 2 ⊢ ((⊤ ∧ ∃!𝑥 ∈ ℤ 𝜑) → (℩𝑥 ∈ ℤ 𝜑) = -(℩𝑦 ∈ ℤ 𝜓)) |
| 18 | 1, 17 | mpan 691 | 1 ⊢ (∃!𝑥 ∈ ℤ 𝜑 → (℩𝑥 ∈ ℤ 𝜑) = -(℩𝑦 ∈ ℤ 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ⊤wtru 1543 ∈ wcel 2114 ∃!wreu 3341 ℩crio 7318 ℂcc 11031 -cneg 11373 ℤcz 12519 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5521 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-we 5581 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-pred 6261 df-ord 6322 df-on 6323 df-lim 6324 df-suc 6325 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-riota 7319 df-ov 7365 df-oprab 7366 df-mpo 7367 df-om 7813 df-2nd 7938 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-er 8638 df-en 8889 df-dom 8890 df-sdom 8891 df-pnf 11176 df-mnf 11177 df-ltxr 11179 df-sub 11374 df-neg 11375 df-nn 12170 df-z 12520 |
| This theorem is referenced by: dfceil2 13793 |
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