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Mirrors > Home > MPE Home > Th. List > riotaneg | Structured version Visualization version GIF version |
Description: The negative of the unique real such that 𝜑. (Contributed by NM, 13-Jun-2005.) |
Ref | Expression |
---|---|
riotaneg.1 | ⊢ (𝑥 = -𝑦 → (𝜑 ↔ 𝜓)) |
Ref | Expression |
---|---|
riotaneg | ⊢ (∃!𝑥 ∈ ℝ 𝜑 → (℩𝑥 ∈ ℝ 𝜑) = -(℩𝑦 ∈ ℝ 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tru 1545 | . 2 ⊢ ⊤ | |
2 | nfriota1 7232 | . . . 4 ⊢ Ⅎ𝑦(℩𝑦 ∈ ℝ 𝜓) | |
3 | 2 | nfneg 11200 | . . 3 ⊢ Ⅎ𝑦-(℩𝑦 ∈ ℝ 𝜓) |
4 | renegcl 11267 | . . . 4 ⊢ (𝑦 ∈ ℝ → -𝑦 ∈ ℝ) | |
5 | 4 | adantl 481 | . . 3 ⊢ ((⊤ ∧ 𝑦 ∈ ℝ) → -𝑦 ∈ ℝ) |
6 | simpr 484 | . . . 4 ⊢ ((⊤ ∧ (℩𝑦 ∈ ℝ 𝜓) ∈ ℝ) → (℩𝑦 ∈ ℝ 𝜓) ∈ ℝ) | |
7 | 6 | renegcld 11385 | . . 3 ⊢ ((⊤ ∧ (℩𝑦 ∈ ℝ 𝜓) ∈ ℝ) → -(℩𝑦 ∈ ℝ 𝜓) ∈ ℝ) |
8 | riotaneg.1 | . . 3 ⊢ (𝑥 = -𝑦 → (𝜑 ↔ 𝜓)) | |
9 | negeq 11196 | . . 3 ⊢ (𝑦 = (℩𝑦 ∈ ℝ 𝜓) → -𝑦 = -(℩𝑦 ∈ ℝ 𝜓)) | |
10 | renegcl 11267 | . . . . 5 ⊢ (𝑥 ∈ ℝ → -𝑥 ∈ ℝ) | |
11 | recn 10945 | . . . . . 6 ⊢ (𝑥 ∈ ℝ → 𝑥 ∈ ℂ) | |
12 | recn 10945 | . . . . . 6 ⊢ (𝑦 ∈ ℝ → 𝑦 ∈ ℂ) | |
13 | negcon2 11257 | . . . . . 6 ⊢ ((𝑥 ∈ ℂ ∧ 𝑦 ∈ ℂ) → (𝑥 = -𝑦 ↔ 𝑦 = -𝑥)) | |
14 | 11, 12, 13 | syl2an 595 | . . . . 5 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 = -𝑦 ↔ 𝑦 = -𝑥)) |
15 | 10, 14 | reuhyp 5346 | . . . 4 ⊢ (𝑥 ∈ ℝ → ∃!𝑦 ∈ ℝ 𝑥 = -𝑦) |
16 | 15 | adantl 481 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ ℝ) → ∃!𝑦 ∈ ℝ 𝑥 = -𝑦) |
17 | 3, 5, 7, 8, 9, 16 | riotaxfrd 7260 | . 2 ⊢ ((⊤ ∧ ∃!𝑥 ∈ ℝ 𝜑) → (℩𝑥 ∈ ℝ 𝜑) = -(℩𝑦 ∈ ℝ 𝜓)) |
18 | 1, 17 | mpan 686 | 1 ⊢ (∃!𝑥 ∈ ℝ 𝜑 → (℩𝑥 ∈ ℝ 𝜑) = -(℩𝑦 ∈ ℝ 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1541 ⊤wtru 1542 ∈ wcel 2109 ∃!wreu 3067 ℩crio 7224 ℂcc 10853 ℝcr 10854 -cneg 11189 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-po 5502 df-so 5503 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-er 8472 df-en 8708 df-dom 8709 df-sdom 8710 df-pnf 10995 df-mnf 10996 df-ltxr 10998 df-sub 11190 df-neg 11191 |
This theorem is referenced by: (None) |
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