Public health care resource allocation and the rule of rescue · Journal of Medical Ethics...

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White Rose Research Online URL for this paper:http://eprints.whiterose.ac.uk/11029/

Monograph:Cookson, R., Tsuchiya, A. and McCabe, C. (2008) Public health care resource allocation and the rule of rescue. Discussion Paper. Journal of Medical Ethics

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HEDS Discussion Paper 07/04

Disclaimer:

This is a Discussion Paper produced and published by the Health Economics and Decision Science (HEDS) Section at the School of Health and Related Research (ScHARR), University of Sheffield. HEDS Discussion Papers are intended to provide information and encourage discussion on a topic in advance of formal publication. They represent only the views of the authors, and do not necessarily reflect the views or approval of the sponsors. White Rose Repository URL for this paper: http://eprints.whiterose.ac.uk/11029/ Once a version of Discussion Paper content is published in a peer-reviewed journal, this typically supersedes the Discussion Paper and readers are invited to cite the published version in preference to the original version. Published paper

Cookson R, McCabe C, Tsuchiya A. Public health care resource allocation and therule of rescue. Journal of Medical Ethics 2008;34(7):540-4.

White Rose Research Online

eprints@whiterose.ac.uk

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HHeeaalltthh EEccoonnoommiiccss aanndd DDeecciissiioonn SScciieennccee

DDiissccuussssiioonn PPaappeerr SSeerriieess

No. 07/04

PUBLIC HEALTH CARE RESOURCE

ALLOCATION AND THE RULE OF RESCUE

Richard Cookson1, Christopher McCabe2, Aki Tsuchiya3

1. Department of Social Policy and Social Work, University of York.

2. Academic Unit of Health Economics, Institute of Health Sciences, University

of Leeds.

3. Department of Economics, and School of Health and Related Research,

University of Sheffield.

Corresponding author:

Dr Richard Cookson

Department of Social Policy and Social Work,

University of York, York

YO10 5DD

Tel: 01904 321248, Fax: 01904 321270, email: rc503@york.ac.uk

ScHARR

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±→…�↑

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…≈ • • ↑∫

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←÷↵← • ↑≈≈ ↑ ±°• ≡± ↔ ±″ ÷±← ±≡ • ⌠ ←÷ ↵ ↵ →← ↔ ±•″ ←• ≈ →↵←÷≈→

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… ← ≈→ ↑↔≡≡≈→≈… ″± → •″ ←÷≈ ≡ ← →≈ ≡±→ ♦↵≥°×≈ …� ↑ ←≈≥ ±≡ ≈ →•← ♥ •≠÷←•″≠

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•″ ↵″ • ≥≈…•↵←≈ °≈→• • • → ←÷ ↔ ≈ ∈≈↑↔≈ • ° •≈↑ •♠•″ ± →•±→•← ←± ←→≈↵←≥≈ ←

≡ → ° •≈″← ↵← • … ←± ≥±…≈→↵←≈ ↑ ↵≠≈↑ ±≡ °→± →≈↑↑• ≈ ″ • •± ↵″… ″↑←≈↵… • •″≠ • ≈

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←→≈↵←≥≈″ ≥↵ ≈ ×≈↑↑ ≈″≈≡• ↵″ ⟩ → ≥ →≈ ±↑←× ± ←÷≈ ↔× ±≡ ∈≈↑ ≈ •↑ ↓↔•← …•≡≡≈→≈″←

≡→± ↑≈♠≈→•← ♥≈• ← ″≠ ″… ↵″ ← ≈ ∂↔↑ •≡•≈… •← →≈≡≈→≈″ ≈ ←± ±≡ ←÷≈ ↑←↵ ↵→… °→•″•° ≈↑

±≡ ∂↔↑←•≈

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″…• •±″ ÷↵← ≡≡≈← ♠≈→ ↑≥ ″↔ ≈→ ±≡ ±°× � ← ← →≥≈… � → ÷↵″� ± …•←• ″↑ • ↑←

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…≈≡≈″… ÷≈ ≥ → ≥°≈→↵←• ≈ ≈÷ ″… ∈↔× ±≡ ∈≈↑ →≈ ←≈↑ ←± ←÷≈ ≡ ← ≡ • ≥•″ ″← • ← •↑

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↔↑ ≈↵÷ →≈ •→≈≥ ← •↑ ≡×↵ ≈… ↵″… ≥↵ •″←→ ≈ ≠→≈↵←≈→ •″≈ ← ← ↵″ ≈↓ ← ¬ ♥≈♠≈→ ←

≥ ↑← ←→• • → ← →•↑←• ≡ ← ←→↵ו • °×≈ ≈″←↵←• ″ ±≡ ←÷≈ ∈↔ ≈ ≡ ∈≈ ↔≈ • ←÷↵← •← •↑

≥ ↑← ± ° ≈←≈× •″…≈°≈″… ← ±≡ ←÷≈ ″ ≈ ← ±≡ ←÷≈ ∈↔ ≈ ≡ ∈≈ ↔≈ ↵ …≈↑→•≈… ←÷≈

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≈ ↑←→↵ו↵″ ≡•″• •±″ •↑ ≥ →≈ →≈≥•″•↑≈″← ≡ ≥ ″ ↵″… ⇔ → °≈↵″ →°÷ ⇐→↔

≈≠•↑ ←• ″

⊂ ≈ ∏ ⇑ ⇑•← �↑ ⇑± × ≈≡• •← ± ↵ •♦ ↑ ↵ •±

⊂÷≈ �⇑•←•ƒ≈″�↑ • • ≠→±↔° ≡ ð ≈≥≈→↑ ±≡ ÷≈ ↔ • …→ ″ ≡→± ↵ → ↵… → ↑↑

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♠↵ ≈ ∂↔…≠ ≥≈″← →≈ ← ″≠ ←± ←÷≈ ∝ ±≡ ⇑⇔ ← ÷ ← ↵ ″± ↵″…↵ ↵ ÷±→•← ← •↑ ↵

↔″• × ≈←•±″ ×↵ ≈≥≈→↑ ±≡ ←÷≈ °↔× →±↔ ← ←±≠≈←÷≈→ ←± ≥≈→↑≈ ← ≥↑≈ ♠ ↑ •″ ÷≈

↑ •↵× ♠↵×↔≈ ≈≥≈″←↑ ←÷↵← ″ ← ≈ ↵♠ • ≈… • ÷≈ →≈ →≈↑±↔→≈ ↵× ± ↵←• ∇″≈ ±≡ ÷≈•→

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ð

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⇓″… ♥ ↵← ו≥• ↑ ↵→≈ ←÷ ≈⟨

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…≈≡ ≈ ← ←÷≈↑≈ •≥•← ÷±↔ … �

⇒±♦ ⇑ ⇑•← �↑ •× ⇑ ≈ ו↑← ±≡ ∉ ↑← ± ≡ → ×≈ ←• ≠ ≈ ∈ × ±

↑ ←÷≈ • ←≈→♠≈″←•±″ ↓↔•→≈… ←± ↵♠ • ≥ ≈…•↵←≈ ± ↑ ≡ •≡≈⟨

↑ ←÷≈→≈ ± ≈ ±≡ ↵″ •″ ≈↵↑≈ •≡≈ ≈ °≈ ←↵ ⟨

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↵← ↵→≈ ←≈→ •♠≈ ←→≈ ← ≈ ← ↵″… ÷± …± ←÷≈ ±≥°↵ ⟨

≈ ≡ ←↔→≈ ≥≈… ↵•″ °→± ≈ ≈ ↔↑≈ ±≡ ÷≈ →≈ ≈ → ÷ ≈ ≈″ →≈… ←÷≈ ←→≈↵←≥≈″←⟨

≈ ← ≈ ↑←↑ °→± •• •♠≈ ←± ←÷≈ ¬ ⟨ ⊂ ÷ ← ≈♦← …±≈ ← ″→≈ ↑ ←÷≈ ↔→…≈ ±≡ ↑←↑ ± ≈ ¬ ↵″… ↑±•≈← ↵← → ≈⟨

± ↵← ≈ ←≈″← •↑ ↑← ≈≡≡≈←•♠≈″≈↑ …≈ ±″↑←→↵ ≈

≈ ← ≈→≈ ≠ ±… →±↔″ ↑ ≡±→ ≈ •≈ • •← ±↔ ↑≈← ↵ →≈≈…≈″← ≡±→ ± °↵←• ← ≠→±↔°

± •″≠ ≡ → ≈↑↑ ± ← ≈≡≡≈ ←• ≈ ←→≈↵←≥≈″←↑⟨

ð •× •← ♠ →← …↵ ≈→ ← ↔ו ÷≈ ≈ ≠ ←÷→≈↵← ≡ ↵″ ≈ • ≥

•× °≈ × ≡ ≈ ↑± • �↑ ±→←÷ •↑ … ≥• •↑÷≈… • ← °°≈ →↑ ←± ≈ ↵← •″ ↵″≈× •≠″ •″ ←÷≈ ∈↔ ≈ ≡ ∈≈ ↔≈⟨

⇒ ♦ →≈ → …↔≈↑ ←÷≈ ↔≈ ←• ←÷↵← ≈ ⇑• •ƒ≈″�↑ ⇑ ↔″• ± ↑ ≈→≈… ≈″←→↵× ←± ←÷≈ ° •↵←• ″

←÷≈ ↔ ≈ ∈≈↑↔≈ ″ �↑ …≈ו≈→↵←• ″↑ ⊂÷≈ ↵∂±→•← ♠•≈♥ ↑ ← ↵ ⋅ ↑÷±↔× ←↵∝≈ •″←±

↔ ← ←÷≈ ∈↔× ±≡ ∈≈↑ ↔≈ ↔ ±″ •″ ↑°≈ •→↔ ↑←↵″ ↑ ⊂÷≈ → →← °→±°± ≈↑ ↵ ÷≈ ∝ • ←

±≡ ↑←• ″↑ ←÷≈ ↵ ↑ ≈→ ←± •÷ • • • °×•≈… ♥• ×± ⇑⇔�↑ ↵ •↑±→ •≈ ←± ↵↑↑≈ ↑

÷≈← ≈→ ← →≈ •↑ ↵↑≈ ←± ≈ …≈ ″ → ←÷≈ →±↵… ↵ ″≠ ±≡ ÷≈ ↔ ≈ ≡ ∈≈↑↔≈ ⊂÷≈ →≈°±→← •↑ ←±

≈ ± ≥≈″…≈… ≡ → ↵←←≈ °← ″≠ ← °≈•≡ ←÷≈ ″…•←• ″↑ ↔ •÷ ↔ ≈ ≡ ∈≈↑↔≈ ↑ ← ≈

°×•≈… ∇″ ± ≈ ≈ ≥•″↵←• ″ ≈→ ←÷• ↵←← ≥°← ≡≡≈→ ≡→± ←÷→≈≈ ∂ → ↑÷±→ ≥ ↑

•→↑← ÷≈→≈ •↑ ≈↵ ≠↔•… ≈ ↵ ↔← ÷± ← ≈ ↵″↑ ≈→↑ ← ←÷≈ ↓↔≈↑ •±″ ↵→≈ ←± ≈ ≈… ⇐ ≈↑

←÷≈ ↔×≈ ±≡ ∈≈↑ ≈ ↵°° •≡ ← ≈ ↵ → ← ← ±″≈ ≡ ÷≈ ↓↔≈↑ •±″ • � ⟨ ≡ ↑± •← …

°× ←± ♠•→←↔ × ←≈ ÷″± ≠•≈↑ ↑↑ ↑↑≈… ⇑⇔ ≡ ← ÷ ♥ ≥↵ ≈↑ ↵″↑ ≈→↑ ↵→≈

→≈↓↔• ↵″… ↵→≈ ↑ ≥≈ ≈ ↵″↑ ≈→↑ ≥±→≈ •≥°±→←↵″ ÷↵ ± ÷≈→↑⟨ ↔→←÷≈→≥ →≈ …± ↑ ←÷≈ ↔ ≈

±≡ ∈≈↑ ↵→ ← ↑↵≥≈ ≈•≠÷← ÷≈″≈♠ •← ↵ °×•≈ → • ← ↵ ≥↵←← → ≡ …≈ ≈≈ ←÷↵←

↵→→•≈↑ ±→≈ ♥≈•≠÷← • ≈→← •″ ≈↑ ≈ ≠ ≈″ ±→≈ ±≡ ← ≈ ↵″↑ ≈→↑ ↵→≈ ≥ ≈ ≈≥°÷↵←•

≈↑ ⟨

≈ … ← ÷≈ ∝ • ← ∝↑ ±÷≈→≈″ ≡±↔↑ → ≈ ≥° ≈ ↓ ≈ ←• ″ ↵±↔← ←≈→″↵←• ≈

←→≈↵←≥≈″←↑ ± ≈→ °↑ •←÷ ↓↔≈↑ •±″↑ ↵±↔← ≠↵•″ ← •≡≈ ≈ °≈ ←↵″ ↓ •← •

↑• ≈ ↑ ≈ ×↔ ← ↑ ″↑ • →≈ ≈″← × • ≈ ″ ≥° •↑ ÷ ←≈→″ •♠≈ ←→≈ ← ≈″←↑

″ ↓↔≈↑←• ″ ↵± ← ≈↓↔≈″ ≈ ÷±↔× ÷≈ ←→≈↵←≥≈″← ← →≈ •♠≈… ♠≈→×↵ •←÷

↓↔≈↑ •±″ •↑ ←÷≈ •″←≈→ ≈″←•±″ →≈ •→ … ← ♠ •… • ≥≈… ←≈ × ↑↑ ≡ •≡≈ ±→↑≈ ← ≈↵↑← ← ± ≡

←÷≈ ↓↔≈↑ ″↑ ≈ → ″± →≈×↵←•±″ ÷•° ← ≈ ±≡ ∈ ↑ ↔≈ ± ≈° →≈↑ ≈ ≡→± •≥ ≈…•↵←≈ °≈→•×

± •≠ ↵ × ″≈…

→ ↑ ↔↑≈↓↔≈″ × ≈ ±→↵←≈ ″ ÷≈ •←≈→ ↔→≈

↔≈↑←•± ↵±↔← ≡↔←↔→≈

≥ •↵× ≠↵•″↑ →↵•↑≈↑ ″ • °±→←↵″← ≠≈″≈→↵× ↑≈← ≡ •↑ ≈ ↔← ←÷≈ ↔≈ ≡ →≈↑≈↵→ ÷ ↑↔≈↑ ≡

°±←≈″ • ≠↵• ≡→ ≥ ± ←• ↔•″≠ →≈↑≈↵→ ÷ → °±← ″←•↵× × ↑↑ ≡→± ≈↵↑ →≈ ≈ → •↑≈ ″

→≈↑±↔→≈ ↵× ± ←• ″ →≈ ≥ ≈″… • …≈ … → ← →≈↑←→ ← ← ↑°≈•↵× ↑≈↑

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… ←± …≈ •←÷ ♥ ∝ ≈ •…≈ ↑ ↵ ↵← ≈↑← ←↵″≠≈ ←•↵×

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≈•←÷≈→ ↵ � ≈↑� → ↵ �″±� ↵″↑ ≈→ ±↔ ↔↑ × ≈ ∂ ←• •≈ ″…•″ ″ ÷≈ …≈ • •±″⌠ ↵ ≈→�↑

♥″ ∂≈←• ≈ ≈ …≠≈ ≈″← ±→ •″…≈≈… ÷± ≡ → ÷≈⟩↑÷≈ •↑ ↑ ≈ ←÷≈ ± • ≡

♠≈ ←≈ •″←≈→≈ ←↑ ⊂÷≈ ♥ →↑← ≡ ≈″…≈→ •″ ÷•↑ →≈↑°≈ ← • ≈ ↵°↑ ∉↔≈↑←• ″ ∑ ÷ ← • �≠± …

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∉↔≈↑←• ″ ÷± ×↵→≠≈ •↑ ↵ �°→±÷ • •♠≈� ↑←⟨

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±°°±→ ↔″•← ± ←� ↓ ≈ ←• ″ ÷ ♥≈♠≈→ ÷≈ •←•ƒ �↑ ⇑± •× • ••← … •← ←÷↵← ÷≈

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↑ •≈← ♠ ↔≈↑ •←↑ ≥° ≈≥≈″←↵←• ″ ± ≈ ÷• ←÷↵″ •← ±↑

•♠• ↵× ± × • ↵←•♠≈↑ ↵ ו ±× • � ← ≈ →≈× � ♦ ←•±

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•″ ←•″←• ≈× →•≠÷← ← •″≠ ←± …± ← ← ÷≈ ↑↵≥≈ ←• ≈ ″± ↵″←•″≠ ← ± ↑≈ •≠÷← ±≡ ←÷≈ ° →← •←

↑←↑ ±≡ …±•″≠ ↑± ″ ←÷•↑ ↑≈ •±″ ♥≈ ±″↑ ≈→ ≈←÷≈→ ← ≈ •″ ←•″←• ≈ ↵°°≈↵ ←÷≈ ↔×≈ ±≡

∈≈↑↔≈ →≈≡ ≈ ″ ↵°°→±° •↵←≈ ±→ ↔″…↵←•± ≡±→ °↔× ×•

← ≥• ← ≈ → ≈ ÷↵← °≈±°× ÷ ≈ ↔ ↵ →• ÷←� ←± ≈ →≈↑ … ≡→ ≥ °≈→ ←÷≈ ←↵←≈

¬± ≈→ •← • ″± ×≈↵→ ÷↵← ≈ ↑ ←≈ •± ← ↑ ↵ °≈→↑±″�↑ →• ← →≈≡↔↑•″≠ ± ↑ ↔≈ ←÷≈ ←÷≈

↑↵≥≈ ♥ ← ↵← •← •≠ ← ♠• ×↵←≈ ←÷↵← → ±″�↑ →• ÷←↑ ↑ ← →← → ″≠ ÷≈≥ �÷ →• ÷←

↑↔≠ ≈↑←↑ ↵ •″ •± ≈ ↑ …≈⌠ ←→↵•″ ±″ …≈•↑• ″ ≥↵ • →↵←÷≈→ ÷↵″ ≈ ←± ≈•≠÷≈… •

←÷≈ ↵″ ≈ ↵″ ← …≈… ±≡≡ ← ≥↵→≠•″ ″↑← ± ÷≈→ °± • ≠ ↑ ↑↔ •↑ ″≠

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←÷≈ →• •… •″♠•± ↵ ≈ ÷↵ ↵←≈→ ±≡ ↵ ÷↔ ″ →•≠ ← •← •× ″≈ ≈→ ≈ °± ↑•×≈ ← ≡±→… ↵×

←≈÷″± ± • ↵×× ≡≈ ↑• ≈ ≈…• ↵× →≈↑ ≈↑

± °→±≥• •″≠ ו″≈ ±≡ ↵→≠↔≥ ″← • ← ↵°°× ←• ±≡ ∈↔ ≈ ≡ ∈≈↑↔≈ ♣ ↔ ° ו ≥↵∝≈→↑

÷↵♠≈ � • ↔≈ ±≥≈ •±″↑ ←÷≈ ↑ ←≈ ÷ ♠ •″…•→≈← ↵″…⟩±→ × ″≠⌠←≈→≥

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⌠±°≈→ ←• ″ ±→ ↑• °× ↑ �←÷≈ ≡ ↵ • • •↑≈… ↵″… ÷↔ ↵″≈ ↑ •≈← �∫

•∝≈ ÷ ↵ →•≠÷←

↑ ו ↵″ ≈ ≈•≠÷≈… ″ ←÷≈ ↵″ ≈ ″… ← …≈… ±≡≡ ↵≠↵•″ ← ←÷≈→ ♠↵×↔≈↑

÷•↑ ÷↵↑ ÷≈

•≥° →←↵″← °→ ← •≥° •↵←•± ↵← ±← ≥≈…•↵× →≈↑ ≈ →≈ ≈↓↔↵× → × • ←±→ � ↵

←÷↵← ←÷≈→ ←÷•″≠ ↓↔ ± ←⌠≈≡≡≈ ←• ≈ →≈ ↔≈↑ →≈ ← ≈ °→≈≡≈→→≈… ←± ↑←⌠•″≈≡≡≈←•♠≈ ↑ ↔≈

¬± ≈→ ←÷≈→≈ →≈ °→± ≈≥ •← ←÷• •″≈ ≡ ↵→≠↔≥≈ ← •→↑← • • ÷↵→ ← ±→≥ ≈♠≈ ←÷≈ ♠↵≠↔≈↑←

≠↔≈↑ ↵ ↔← ÷≈ ≥↵≠ •← …≈ ≡ �↑ ≥± • ♠↵×↔≈� ″ ← ″× ≈ ↵ ≈ ≈≡≡≈←↑ ↵→≈ • •→≈ ← ↵″…

←≈→≥ ↔← ↵×↑ ≈↵ ≈ ↑↵≥≈ ↵ •± ≥↵ ≥± •↑≈ •≡≡≈→≈ ← ←÷ ″≠↑ ← •≡≡≈ ← •←•ƒ ↑

≈ … ←÷≈→≈ •↑ ↵″ ≈→ ↑←× ″… •→ ←• ″↵× �≠≈ ← →≈ °± •←•↑� →≈° • ≠ ↵←• ″ …≈• •

≥↵∝•″≠ ÷•→… ← • ″±← ≈ → ←÷≈→≈ •↑ ″ ו ↔≈ ″ °→±↵←•♠≈ ° • …≈ •↑• ″↑ ≈

…• ← ″≠↔• ÷ ← ↑≈ ↵→•±↑ •→ ← ≈ ± • ← •↑ ♥•× •″≠ ←± °← …•♠≈→↑• ″↑ ≡→ ≥ ÷≈

≈ ≈→↵ ↑←⌠≈≡ ≈←•♠≈″≈↑↑ →≥ •″≠ � ≈°←•± •→↔ ↑←↵″≈↑� →≈↵ •♠≈× ±″ ↵ ↵↑≈⌠

⌠ ↵↑≈ ↵↑• ≈ ÷≈ →≈ ↔≈ ←≈↵ ±•″≠ ±♠ → ↔…≠ ← ←± ↑ ≈ ÷≈ •≡≈ ≡ ←→↵°°≈ ≥ ″≈→

↑≈±″… ≈″ •± × ↑≈→ ← ÷≈ ⇑⇔ ↑≈ •↑ ♥÷≈→≈ ↑±•≈← ≈•≡•≈↑ ≈≡ →≈÷ ←÷≈ ° → •↔ →

← °≈↑ ±≡ •″ …≈″← ÷≈→≈ ←÷≈ ≈″≈→ ±↑←⌠≈≡≡≈ ←• ≈ ↑↑ ″ •↑ ← ≈ →≈ … ≠ ←± ″♠≈↑← •″

…• → °±→←• ″↵←≈ ≈♠≈ ↑ ≡ ↑°≈• •↑← ↵≡≈← °→± •↑•±″ •″ ≥ ″≈↑ ← ″ ← •″ → •× ←↔″″≈ ↑

↑±•≈← ←÷↵← … ≈↑ ″± ± ≥ …↵←≈ ← ≈ ≡±→ → ← ±≡ ♦≈°←•±″ …±≈ …≈ ↑≈≈≥ ←± ≈

•″÷ ≥↵″≈ ¬ ≈ → •← • ″ ← • ←÷↵← ↑ •≈← ←÷ ← ↵ ≥ ±…↵←≈↑ ←÷≈ ←←≈→ ← °≈

≈ ≈°←•±″ •↑ ″≈≈↑↑↵→•× ÷ ↵″≈ •← •↑ ″±← ≈ → ♥ ≈→←↵•″ →±↔°↑ ≈ ≠ ≥ ″≈→↑ ↑÷±↔×… ≈←

↑°≈ •↵ →• →•← ← ←÷≈ ±↑ ≡ ≈ ≈ ±″ ≈ ↑≈ • ≈ ←→↵•″ ↑←↵≡≡ ↵ °↵↑↑≈″≠≈→↑

±→≈ ≡ … ≈″←↵× ←÷≈ ↵↑≈ ↵≠↵•″↑ °× •″≠ ← ∈↔×≈ ±≡ ∈≈↑ ≈ ← ↔ • …≈ • • • ←÷↵← ← •↑

↑≈ ↵ ″↵← →↵ ÷↔≥↵″ ≥±←• ″ ← ↵← • •→→≈ ≈ ″← ←± …≈•↑• ″ ↵″… … ≈ ∝ °←

≡•→≥× • ← ≈ →• ↵←≈ ↑ ÷≈→≈ →…•″≠ ←± ← •↑ ♠• ♥ ←÷≈ °→• → ♠•→←↔≈↑ ≡ • …≈ • •

≥↵∝•″≠ ↵→≈ • ° → • ← ↵ ↔↑←•≈ •″ ↵″•″≠ ←÷≈ • ←≈→≈↑←↑ ±≡ …•≡≡≈→≈″← °±°↔ ↵←• ≠→ °

→ ←÷≈→ ←÷↵″ °↵→←•↵ •← … ± °↵↑↑• ″ ←± ↵ …↑ ° ←•↔×↵→ • ″←• •↵×≈ •″…• •…↔↵×↑ →± ≈ ±≡ ←÷≈

°↔ • …≈•↑• ≥↵∝≈→ • ←± ↵∝≈ •≥ →← …• ° ↑ •±″↵←≈ … ≈≥≈″← ↵± →≈↑ →≈ ↵× ± ←•±″

≈← ≈″ →±↔°↑ ≡ ↔″•… •≡•≈… °≈±° ≈ ↵″… •→ �↑←↵←• ← ↵×� •♠≈

→←• •← ″…

≥° ↑ • ″ ← →…↑ ° → •↔×↵→ …≈″←• •≈… ″…• • ↵×↑ →≈ • → ° ↵←≈ ″ …≈→ ←• ↑ ← ← ÷≈

°↔ • …≈•↑• ≥↵∝≈→ ↔ … ← ← •″←≈→≡≈→≈ •← • ≈ •↑• ″ ≥ ∝•″ ↵↑ •← •↑ ↵→•←→ →

… ″ •→ ← …• •≥ ″↵←≈ ″ ≡ ±↔→ ± °≈±° ≈ ÷± ÷↵°°≈ ← ≈ •… •≡•≈… ↵″… ↵≠↵•″ ← ←÷±↑≈ ♥÷

÷ ≈ ″± ← ≈≈″ •…≈″←• •≈…

⇑ ↑• ≈ ≈↑ ±≡ ←÷≈ ∈↔ ≈ ≡ ∈≈ ↔≈ ← ↵± ← °≈ •≡ • • • ↔ ↑ …→ ″• ″ ← ≈ ←≈→ →

≈″←→ ≈ ″ ≡•→≈ ″ ≈ ≥≈…•↵× ″ ≈♦← ←÷• ± →≈↑°±″… ←± ←÷≈ •″ ↵× ≈…↑•…≈ ≈ ≈× ÷≈

°→±°→•↵←≈ ° → ≈ •″ ↵ ≈…• ″←≈ ← ←÷≈→≈≡±→≈ ÷≈← ↵″ ″…•♠ ↵× → ↵ ←≈↵≥ ≡ ≈…•↵×

↑←↵ ≡ ≈″← ≈ … ← ≈• ↔ ↔ ↵× ≡ …↔← ←± ↑ ≈ •≡ •≡≈ ↑ … °→↵•↑≈… ≡ → •″≠

↑ ⊂÷≈ ↵°°→±° •↵←≈ ° •″ ≥≈ ± ←≈ ← • ″± ÷≈←÷≈→ → ″±← ⇑⇔ ↑÷ ↔ ↔← •″ °

↑ ↑← ≥ ←• ° •±″ ≡ → ← ↑≈ ↵↑≈↑ ≈→≈ •″…• •… •♠≈ •×× ←÷→≈ ← ″≈ ≈ →≈≥•← ±≡

⇑⇔ … ≈↑ ″±← ± ≈→ •″…• •… ↵↑≈ •← •↑ ↵ … ≈← ↔° ←± ↵∝≈ →≈±≥ ≈″…↵←• ÷≈

″↵←•± °± • ≈ ×

⊂÷≈→≈ •↑ ↵×↑ ↵ ≡↔″ ≥≈″ ∂ ←• ″ ←± ↵ …≈≡• ←•± ≡ ÷≈ ↔×≈ ±≡ ∈≈↑↔≈ ↵↑ ↵ ≈♦≈°←• ↵

↵↑≈ ″♠ × • • • ″← …≈ ÷ ↔ ↵ ≈ ″≠↑ →≈ ±→←↵× ±″≈→ → ←≈→ ↵× •♠≈↑ •× ° ↑↑

←÷→±↔ ÷ ÷≈ ↑ ≈ ÷± ≈→ …≈≡•″≈… ↵″… ±°≈→ •±″↵ו↑ ÷≈→≈ ≈↵←÷ •↑ � ≥ •″≈″←� ± ≈

…≈ ÷↑ ↵→≈ ↔ ♦°≈ ← … ↵ … •∝ ≈ ←→ ≡≡• •…≈ ←↑ ↑ ← ←÷•↑ ♥• ÷↵°°≈″↑ ♠≈→

↑↔……≈″ ↵ • ± →→ ♥ ←÷ →≈ •↑ ≈ ≡±→ ≈…• ″←≈→♠≈″←• ″ ¬± ≈→ • ↵ → ≈

″ ≈→ ±≡ ≈↑ …≈↵← •↑ ±→≈ → ≈↑↑ °→≈…•←↵×≈ ↵″… ≈≡ →≈ …≈ ← • ≈ ↵ ↑←↵≠≈ ÷≈→≈ ←÷≈

°↵←•≈″← •× ≈ →≈ →…≈… ↵↑ ≡↵ • ≥•″≈ ← …≈ ÷ ← •↑ °→ ≈≥↵←• ←± →≈≠↵→ ≡ •″≠ ♥•← •″ ←÷•

•″ ″↑← ←↔← ″≠ ↑± ≈←÷ ″≠ ≈ ≈°←• ″ ↵″… ≈•″ ±→←÷ ≡ ↑°≈ • × ±″↑ …≈→ ←• ″ ← •

″±← ±≥ ←÷ ≈♦≈°←• ″ ↔← ↑± ≈←÷ ≈ •× ↵×× ↵↑↑ ←÷→ ↔≠÷ •″ ↑± ≈ ≡ →≥ ±→ ←÷≈→

¬↵♠•″≠ ↑≈← •…≈ ÷± ≈ ≡±→ ♥÷ ≥ ″ →≈↑ •↑ °±↑ • ≈ ″… ÷±↑≈ ≡±→ ÷±≥ ←÷≈ ↑←↵←≈ ±≡ •≥ •″≈″←

…≈ ÷ →→• ≈↑ °→≈…•←↵× ← ←÷≈ ≈ ÷♥↵ ≡ •″ →≈↵↑•″ ↵″… ↵° → °→•↵←≈× ≥↵ ↵≠≈… •

÷≈ ←÷ ≈ →≈ × ← •← ≠→± ±≡ °≈ ≈ ≡ → ÷± ←÷≈ ←→ ↑ ←•± ←± ←÷≈ ← ≈ •≥ ≈…•↵←≈ °≈→•

÷≈←÷≈→ ≡ ←↵× ±→ ″ ≡ ← ↑ ↔″≈♦ ≈ ← ↵ ≡ → ≥ ←→≈ ← ≈ ↵ ← ≠÷ ″ ← ± ← ≈≡≡≈ ←• ≈

•↑ °± ↑•×≈ ↑ ≠→±↔ • …≈≡ ″≈ ↵← ← •↑ ″±← ↵″… • °×•• ″ ←÷↵← ″ ←•±″ • ÷ × ≈

±≡ …≈♠•↑•″≠ → ⌠ ←• ≈ °± • ↑←↵←≈ ≈ ← ≡±→ ←÷≈ →←÷≈→ •← •↑ ≠→± ≥ ↑← ∝≈ ←± ≈

″ ≈ ←→ ← … ÷± ≈ ÷± ←≈→ ← ≈ ÷≈↵ ← →≈ ↑ ↑←≈ ←÷→±↔≠÷ ←÷≈ ≈ ≈→≠≈ …≈° ←≥≈″ ∑

÷• ÷ •↑ …≈↑• ≈ ↵″… ≡↔ ≈… → ÷≈ ↔ ↑≈ ±≡ →≈ ↔•″ ↑≈ ÷± ≈ • ×⌠ ← • ↔″≈ ←≈

… ←≈″←•↵× ×•≡≈ ← →≈↵←≈″• ÷≈ ↵°°→±°→• ←≈ • °± • ≈♦°→≈↑↑• ″ ±≡ ← ≥ → •≥°≈→↵←• ≈

←± →≈↑ ↔≈ ←÷ ↑≈ ÷± ″≈ ←≈… ≡ • ←± •≥≥ …•↵←≈ ≈→• × ≈ ←÷≈ ≈ ≈ ≈″ ÷≈↵×←÷

↵→≈ ≈→♠• ↑

± × •±

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•≥ ≈…•↵←≈ °≈→•× ⇒ ↵↔↑≈ ≈ ↑÷ →≈ ← •↑ →≈↑° ″↑≈ ↵↵ ≥• ↵″ °± • ≥↵ →↑ ↵♠ ↑←→↔≠ ≈

←± • °×≈ ≈″← ← •″ ÷≈ ± ←≈♦← ±≡ ÷≈↵ ←÷ ↵→≈ °± • ⊂÷≈ ≈″←→↵× → ×≈ ↵↑ ≈≈″ ←

±°≈→↵←•±″↵ •↑≈ ↔″…≈→ •″≠ ±″≈°← ↵″… ← ±→≠↵ •↑↵ • ↑ ÷↵♠≈ ≈♦° • •← ↵ °←≈… ←÷≈

≈″≠≈ ≈ ↔↑←→ • °± • ±″ ≈ ±≡ ≈↑ ↔≈ ″ °÷↵→≥↵≈↔←• ♠≈ ↵≠ …≈ •↑• ″↑ •↑ •″

≡ ← ≥ ↑← ± °× ←≈× …• ±→ ≈… ≡→±≥ ←÷≈ ±→• ↵× ″ °← ≡ • ≈…•↵←≈ °≈→ ↵″… ≡ ↔ ↑

•″ ←≈ ±″ ↵ •≡ ≈→≈ ← ↑≈← ≡ • ↑↔≈↑ →±↔″… ″≠ ÷≈ °→± ≈≥ ≡ →°÷ … ⊂÷≈ ⇑⇔

⇑ ←•ƒ≈″�↑ ⇑ • →≈°±→← °→ ♠•…≈↑ ↔ ≈≡ →≈÷≈↵→↑ ≡ ←÷≈ • ↑↔≈↑ ↔← •″ ←÷≈ • ↵″ ↑• ←÷≈•→

↑ ×↔←•± •↑ ↑± ≈× …≈≡•″≈ ← ← • ↑ ←± °→± • ≈ ≈ ±°≈→↵←• ″↵× ≠↔•…↵″ ≈∫

⊂÷≈ ∈ ≈ ±≡ ≈↑ ↔≈ � • ≈ ÷≈ ±→↵× • → ←•♠ ←± →≈↑↔≈ …≈″←•≡•≈… ″…• ↔ ↑ ″ •≥ ≈…•↵←≈

°≈→•× →≈≠↵→…×≈ ↑ ≡ ↑← • ↑← ″← ≡ ±≥ ←÷≈ ≠ ≈→↵× •↑ ±≡ ±″≈→″ ≡ → ←÷ ↑≈♠≈→≈× •× ♥÷•÷

…±≈↑ ← ←↵÷ ≈ ↵ • °±→←↵ ≈ ≈•←÷≈→ ←± ÷≈ • ≥≈ •↵ ±≡ • ↑↑ → ← ←÷≈ •≡•↵•× ← ±≡

←÷≈ ″…• • ↵× ″ → ≈… ″ו∝≈ ←÷≈ ∈↔ ≈ ≡ ∈≈↑↔≈ ±″≈→″ ≡±→ ←÷≈ ↑≈♠ ≈× •×× ≈

≠→ ↔ …≈ ≠≈″≈→↵ו ↵ ≈ • ↓↔≈↑←• ″↵ ≈ ° •× ↑±°÷• °→•″•° ≈↑ ≡ ←• ↓ ″←• •≈… ″

≡±→ • ↵× ≡±→ ≈ ≥• ≈ ↵←• ″∫

∈≈≡ ≈ ←•″ ↔° ″ ÷≈ °± ↑• ≈ ±→↵× ≡±↔″…↵←• ″↑ ≡ → ÷≈ ↔↑≈ ±≡ ↔× ±≡ ∈≈↑↔≈ •″ °↔ • →≈↑ ↔→ ≈

± ←•± •← •↑ …•≡≡ ↔× ←± ≡ ″… ″ •″ ″≠ →≠↔ ≈″← → …≈♠≈× °• °→±⌠ ←•♠≈ ↑±•↵× ••≈↑

±″ ÷≈ ≡ ↔″…↵←• ″ ″…•♠ …↔ ±→↵× →≈ ≈↑ ← ≈ ≈°←• ″ •→↔ ↑←↵″≈↑ ⊂÷≈ ↵° → •↵←≈

→ ×≈ ≡ → ←÷≈ • …≈ •↑• ″ ∝≈→ • ← ≈″↑↔→≈ • ° ←•↵× ← ↵″… ↔ ←• ≈ •″ ↵×↵″•″ ≈ •″←≈→≈↑←

± ↔″•…≈″←• •≈… •″…• •…↔↵× ≈ • ←± …•≡≡≈→≈″← °↔×↵ •±″ ≠→ ↔ ↑ ← • •∝≈× ← ↵← °↔× ° ו

≥↵∝≈→↑ ″ ÷↔ ↵″≈ ↑ •≈← ↑÷±↔ … ≡↵•×• ↵←≈ ≈ ≈°←• ″ …≈° → → ↑ ≡→± ↵ ± ← ≈≡≡≈ ←• ≈″≈↑↑

″±→ ↵← •× ±≥ ←•≥≈↑ •←≈ →• ÷← ≈ …≈ ÷≈ ←÷ → ≡≈↑↑• ↵× °≈→ ← ″≠ ← ← ″•

≈…↑•…≈ ×≈ •″ ↵∝•″≠ ≈• •±″ ↵±↔← …≈ •≡•≈… •♠ …↔ ↑ ↔← •← • ← ↑± ±♠• ↔↑ ←÷↵← ←÷≈

↑÷±↔ … ≥ ←←≈→ ≡ • ו ≈♦≈ ← ↵″ ±″≈ ≠→±↔° ≡ ″•…≈″←• •≈… •″…•♠ …↔↵×↑ •←÷

↑ •≈← → ≥ ← ≈ → ≈↑ ±≡ ° →←↔ •← ±↑← ↵← ← ≈ ≈♦°≈″↑≈ ±≡ ↵ × ±←÷≈→↑

ð

⇓ ♥ ≠≈ ←↑

≈ ↔ →↑ … •∝≈ ← ←÷↵″∝ ∏↵→ ⇑ ♦← ″ ⇔→ ∝ … → ÷≈ ≡↔ ≥≈″←↑ •÷ …

⇑ ±∝↑±″ •↑ ≡↔ ≈… ⇑ ¬≈ ≈→ • ≈↑ ∈≈↑≈↵→ ÷ °≈• → • ≈××± ↑÷•° ð⟩

⇑± ≈←• ⋅ ≈→≈↑←↑

∈• →… ⇑ ±∝↑± • ≈ ≈→ ←÷≈ ⇔ °→↵•↑ ⇑± ≥ ←←≈≈

⇑÷→ ↑←± ≈→ ≈ ↵↑ → • × ≡↔ …≈… ←÷≈ •± ″↑←•← ←≈ ≡ → ¬≈↵×←÷ ″… ⇑ •″•↵×

⇔♦≈×× ≈ ≈← ðð ↵″… ðð

∈≈ ≈ ≈ ↑

√±″↑≈″ ∈ ⇒≈″ ↵ ″ ± ⊂≈ ÷″ ≠ ↑↑≈↑ ≥≈″← ↵″… ¬ ←÷ →≈ ↵× ←• ″ ↵♥

≈… ≈ ↵″… ≈ ←÷ ⇑ →≈∑ ∑ ⌠

¬ …±→″ ⇑ ≈←← ″≠ ÷≈↵×←÷ →≈ ° •±→• •≈↑ • ∇→≈ ±″ ±↑← ≈≡≡≈ ←• ≈ ≈ ↑ ≈≈←↑ ÷≈ →↔ ≈ ≡

→≈↑ √ ⌠

•≈ •÷ …↑±″ ÷≈ ≈ ±≡ ≈↑ ↔≈ ± • ≈… ∑ ð�

√≈″″• ⇔ ↵″… ± ≈ ←≈•″ ⇔ ° • •″≠ ←÷≈ � …≈″ • • ≈ ♠• •≥ ≈≡≡≈ ←� √ ↔→″ ≡ •↑

… ≈→←↵•″←

←• ″↵× ″↑←•←↔←≈ ≡±→ ≈ ←÷ ↵ ו • ⇔♦≈ ×≈″≈ •←•ƒ ⇑ ↔″•× ∈≈° →← ← ↔×≈ ±≡

∈≈↑↔≈ ⇑⇔ ±″…±″ ðð ÷← °⟩ ♥ ♥ •≈ →≠ ⟩°↵≠≈ ↵↑°♦⟨ ≈↑↑≈…

⟩ ð

∈ • ↔ ♣≈→ ←•±″↵× ″↑← ←↔←≈ ≡ → ⇑ •″• ⇔♦≈ ×≈ ≈ ↵″… •← ↔≈ ↔ ≈≥≈″←

⇒→• • ≈… ↵× √±↔ ↵ ðð ⌠

←• ″↵× ″↑←•←↔←≈ ≡±→ ≈ ←÷ ↵″… ו • ⇔♦≈× ≈″≈ ⇑⇔ ± •↵× ⊇ ↔≈ ↔…≠≈ ≈″← �

→• ° ≈↑ ≡±→ ÷≈ …≈ ≈× °≥≈″← ≡ ⇑⇔ ∧↔ ≈ ±″…±″ ⇑⇔

÷←←° ⟩⟩ ♥ ″• ≈ ±→ ° ≠≈ °♦⟨ ↑♠∂ ↔•…↵″ ≈ ↑≈… ð

⇐≈° →←≥ ≡ ¬≈↵×←÷ ↵″… ≈•″≠ ∧↔•…≈ •″≈↑ ≡ → ≈ ÷ → ↔← ″ ↔↑ ±″ →≈° → • ″

±≡ ↔ •↑ • ←± ÷≈ ÷ → ≈↔← ↵ ⇒≈″≈≡•←↑ …♠• ±→ ⇑ ≥ •←←≈≈ •″ •″ ≥↵∂ →

↑↔ •↑ •±″↑ ″♠± • ≈ ″±≥• ↵″ ≈ ↑← •↵ ±♠≈→″≥≈″← ≈ ↵→ ≥ ← ±≡ ¬≈ ←÷

… ≠≈•″ ⇑ ″≈→→

÷←←° ⟩⟩ ♥ ÷≈ ←÷ ≠ ♠ ↵ •″←≈ ≈←⟩ ≥↑⟩ ↔ו ÷ ″↑ ⟩⇑± ←≈″← ÷≈ ←÷⌠° ⌠≠≈″≈→ × ↔

°÷↵→≥°↵ ⌠ ÷←≥ ≈ ↑≈…

⇑×↵♦← ↵″… ⇑↔ ≈→ ⊃• …″≈↑↑ ±→ × ⟨ ≈←÷•↑ ±≡ …≈ • ±″↑ √±↔ ″ ±≡

≈… ←÷• ð ⌠

ð ↵→≡•← ⇐ �⇔↓ •← ≡ °→•±→•← ⟨� →≈° •″←≈… • ⇑ ← ″ ⊃• •↵≥↑ ≈…↑ ⊂÷≈

•…≈ ±≡ ↓↔ ← ⇒ • ↑← ∝≈ ↵≥• ×↵″ ↑↑ ðð

• ≈→ ⇐ → ″•°×≈ ±≡ ↑±•↵ ←•≈ ⇒ ↑←± ¬ → • ≈→↑•← →≈↑↑ ðð

∏↵≥ → •← ±→← ← ⊇ × ≈ ←÷ ⊃÷ ≥ ←± ↵♠≈ →±≥ ← ∇♦≡ →

∇ →… ⊄″•♠≈→↑• →≈↑↑

∈ ↑ √ ≈ ±≡ √ ←•≈ ↵→♠↵ ⊄″• ≈→↑•← ↑↑ ⇒≈ ∝ ↵° →≈↑↑ ¬↵→♠↵→

⇒→± ≥≈ √ �∧ ±… ≡ •→″≈↑↑ ↵″… ↓ ↑ ″ ÷• ± ♣ ↵ •↵× ⊃≈×≡↵ ≈…•←≈… ←

⇒≈ ″… ↑ ≈ …↔↑ ⇑ → …≠≈ → ≈ ⊄″•♠≈ ↑•← →≈↑ ° �

⇑↔× ″… ⊃↵≠↑←↵≡ ↓↔ ← ↵″… ↓↔↵ו← •″ ≈ ←÷ ¬≈ ⇑ →≈ √±↔ ″

¬≈↵×←÷ ⇔ ″± ∑ ⌠

⇑± ±″ ∈ … ⇐± ↵″ •″ ≈↑ ±≡ ∂ ↑ • ≈ •″ ÷≈ ←÷ ↵ →↵←• ″ ±↔ ″ ≡ ≈…

⇔←÷• ðð ⌠

±→… ⇔ ⇑± ←⌠♠ ↔≈ ↑•↑ •″ ←÷ →≈ •″≠ ↑≈″↑≈ ±≡ ⇓∩ ⇑↵ →•… ≈ ↵≥→•… ≈

⊄″•♠≈→ •← →≈↑↑

±→… ⇔ ¬≈↵× ÷ ← ←≈ ♠↵×↔≈↑ ≡→± ↔ ←•↵←←→ ↔←≈ ←• •← • ←→↔≥≈ ←↑ ″≈≈… →→≈←•±″ ″ ↵× ±

≈…• ≈ ⌠

± ≈≠• ″ ≈… ↑ ⇑ ″←→± ⇓≠≈″ ±→♥≈≠•↵ ≠↔ ≈ •″≈↑ ≡ → ↵→ ≈ ″±≥•

↑•↑ • ←• ″ •← ↵°° • ↵←• ≡±→ •≥↔→↑≈ ≈″← ⇑ ∇↑ ðð

÷←←° ⟩♥♥ ≠≈ •… × →∝≈← ″± ←≈≥ ←≈↑⟩ ″←≈→ ↵≠≈ℑℑℑℑ ↑°♦ ≈↑↑ ⟩ ð

ð ⊃• ↵≥↑ ÷≈ �≡↵• •″″ ↑� ↵→≠↔ ≈″← …≈↑≈→♠≈↑ ≡↵•→≈→ ÷≈ → ″≠ ⇑ ≥ ≈″ ×↵″

•× • ↑ ±→… … √ ÷↵″ ↑↑±″ ¬≈↵ ← ⇔ ″ ∑

⇑↵≈ ⇑ ⇑ ♦← ″ ∏ ↑↔÷• ⇓ ∇→°÷↵″ ↔≠↑ ↵″… ÷≈ ¬ … ≈ ↔≈ →↵→•← ⟨

⇒→• • ≈… ↵× √±↔ ↵× ð∑ ð⌠

±±… ↵″… ⇐ ↔≠ …≥ ″• ←→ •±″ ∇→ ÷↵ … ↔≠ ↵← ↵↑ ≈″…≈… ♥♥ ≡ ↵ ± ⟩±→°÷↵″⟩ ↵ ÷←

≈≠↔×↵←• ″ ⇔⇑ ± ðð ≡ ≈ ⇔↔→ ≈↵″ ↵→ו ≥≈″ ↵″… ≡ ÷≈ ⇑ ↔″• ±≡ ⇐≈≈≥≈→

″ →°÷↵″ ≈…••″↵ °→±…↔ ↑ ∇≡≡•• √±↔→″↵× ±≡ ÷≈ ±°≈ ⇑ ≥ ←•≈↑

ð ⌠

±ƒ•∝ ∈ ⊂÷≈ ↵←↔→≈ ±≡ ∈↵ •±″↵ו← →•″≈←±″ →•″≈←±″ ⊄″• ≈→↑•← →≈↑↑ ðð

→±± ≈ √ ⊂ •″ ←± ♠↵×↔≈ ↵ ו ≈ √ ↔→″ ≡ • ⇔ ″± •↑ ∑ ⌠

∧± •″ ⊄ • •←↵→ ↑ ↵ ↔ • • ± ±°÷ ↵≥→•… ≈ ⇑↵ → …≠≈ ⊄″•♠≈→↑•← →≈ ↑