rr rs rr s - - PowerPoint PPT Presentation

r r rs r r s r
SMART_READER_LITE
LIVE PREVIEW

rr rs rr s - - PowerPoint PPT Presentation

rr rs rr s rr rs rr s r rr rs


slide-1
SLIDE 1

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

slide-2
SLIDE 2

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❙✉♠♠❛r②

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❬❈❤❛♥❣✲▲❡❡ ❈❤✳ ✹✳✸❪ ❍❡r❜r❛♥❞ ❇❛s❡ ❬❈❤❛♥❣✲▲❡❡ ❈❤✳ ✹✳✸❪

slide-3
SLIDE 3

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❇❛❝❦❣r♦✉♥❞

❉❡s✐❞❡r❛t❛ ❲❡ ❦♥♦✇ ❤♦✇ t♦ ♣r♦✈❡ ❛ t❤❡♦r❡♠ ❜② ♣r♦✈✐♥❣ t❤❛t ❛ s❡t ♦❢ ❝❧❛✉s❡s ❙ ✐s ✐♥❝♦♥s✐st❡♥t

  • ✐✈❡♥ ❛ s❡t ♦❢ ❝❧❛✉s❡s ❙ t♦ ♣r♦✈❡ t❤❛t ❙ ✐s ✐♥❝♦♥s✐st❡♥t ✇❡

♥❡❡❞ t♦ ❝❤❡❝❦ ❛❧❧ ✐♥t❡r♣r❡t❛t✐♦♥s ♦✈❡r ❛❧❧ ♣♦ss✐❜❧❡ ❞♦♠❛✐♥s✿ ❯♥❢❡❛s✐❜❧❡✦

  • ✐✈❡♥ ❈❤✉r❝❤ ❛♥❞ ❚✉r✐♥❣ ✇❡ ❛✐♠ ❢♦r ❛ ♣r♦❝❡❞✉r❡ t❤❛t

st♦♣s ✐♥ ❛ ✜♥✐t❡ ♥✉♠❜❡r ♦❢ st❡♣s ✇❤❡♥ ❙ ✐s ✉♥s❛t✐s✜❛❜❧❡

❚❤✐s ♠✐❣❤t ♥♦t ❜❡ ❣♦♦❞ ❡♥♦✉❣❤ ❜✉t ✐t ✐s t❤❡ ❜❡st ✇❡ ❝❛♥ ❤❛✈❡✦

❍♦✇ ❝❛♥ ✇❡ ✜♥❞ s✉❝❤ ❛ ♣r♦❝❡❞✉r❡ ❄

slide-4
SLIDE 4

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍❡r❜r❛♥❞✬s ❆♣♣r♦❛❝❤

  • ❡♥❡r❛❧ ■❞❡❛
  • ✐✈❡♥ ❙ s❡t ♦❢ ❝❧❛✉s❡s

❋♦❝✉s ♦♥ ❛ ✉♥✐q✉❡ ❞♦♠❛✐♥ ✭❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡✮ ❚✉r♥ t❤❡ ❙ ✐♥t♦ ❛ s❡r✐❡s ♦❢ ❣r♦✉♥❞ ❝❧❛✉s❡s ♦✈❡r t❤✐s ❞♦♠❛✐♥ ✭❊①♣❛♥s✐♦♥✮ ❙ ✐s ✉♥s❛t✐s✜❛❜❧❡ ✐✛ ✇❡ ❝❛♥ ✜♥❞ ❛♥ ✉♥s❛t✐s✜❛❜❧❡ s❡t ♦❢ ❣r♦✉♥❞ ❝❧❛✉s❡s ✐♥ ❛ ✜♥✐t❡ ♥✉♠❜❡r ♦❢ st❡♣s ❍❡r❜r❛♥❞ ♣r♦✈❡❞ ✇❡ ❝❛♥ ❛❝t✉❛❧❧② ❞♦ t❤✐s

slide-5
SLIDE 5

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍✐♥t ♦♥ t❤❡ ❊①♣❛♥s✐♦♥ ❈♦♥❝❡♣t

❖♥ ■♥✜♥✐t❡ ❉♦♠❛✐♥ ◗✉❛♥t✐✜❡rs ❝❛♥ ♥♦t ❜❡ r❡❞✉❝❡❞ t♦ ❛ ✜♥✐t❡ ♥✉♠❜❡r ♦❢ ❝❤❡❝❦ ❊①❛♠♣❧❡ ∀①∃②●(①, ②) ■❢ ❞♦♠❛✐♥ ✐s t❤❡ t❤❡ ♥❛t✉r❛❧ ♥✉♠❜❡rs ❛♥❞ ●(①, ②) r❡♣r❡s❡♥ts t❤❛t ① ✐s ❣r❡❛t❡r ♦r ❡q✉❛❧ t❤❛♥ ②✱ ✐♥t✉✐t✐✈❡❧② t❤✐s ♣r♦♣♦s✐t✐♦♥ ✐s tr✉❡✱ ❜✉t ✇❡ ❝❛♥ ♥♦t r❡❛❧❧② ❝❤❡❝❦ ❢♦r ❡✈❡r② ✐♥st❛♥❝❡

slide-6
SLIDE 6

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍✐♥t ♦♥ t❤❡ ❊①♣❛♥s✐♦♥ ❈♦♥❝❡♣t ■■

❖♥ ❋✐♥✐t❡ ❉♦♠❛✐♥ ◗✉❛♥t✐✜❡rs ❝❛♥ ❜❡ r❡❞✉❝❡❞ t♦ ❛ ✜♥✐t❡ ♥✉♠❜❡r ♦❢ ❝❤❡❝❦✿ ∀①P(①) = P(①✶) ∧ P(①✷) ∧ · · · ∧ P(①♥) ∃①P(①) = P(①✶) ∨ P(①✷) ∨ · · · ∨ P(①♥) ❊①❛♠♣❧❡ ∀①∃②●(①, ②) ■❢ ❞♦♠❛✐♥ ✐s t❤❡ t❤❡ ✐♥t❡r✈❛❧ ❬✵✱✶✵❪ ✇❡ ❝❛♥ ❛❝t✉❛❧❧② ❝❤❡❝❦ t❤❛t t❤✐s ✐s tr✉❡

slide-7
SLIDE 7

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡

❉❡✜♥✐t✐♦♥ ✭❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡✮

  • ✐✈❡♥ ❙ s❡t ♦❢ ❝❧❛✉s❡s ✉♥✐✈❡rs❛❧❧② q✉❛♥t✐✜❡❞ ✭❙❦♦❧❡♠ ❙t❛♥❞❛r❞

❋♦r♠✮ ❍✵ ❛❧❧ ❝♦♥st❛♥ts ✐♥ ❙✳ ■❢ ♥♦ ❝♦♥st❛♥t ✐♥ ❙ t❤❡♥ ❍✵ = ❛ ❋♦r ✐ > ✵ ❍✐ = ❍✐−✶ ✉♥✐t❡❞ ✇✐t❤ t❤❡ s❡t ♦❢ ❛❧❧ t❡r♠s ❢ ♥(t✶, · · · , t♥) ❢♦r ❛❧❧ ❢✉♥❝t✐♦♥s ❢ ♥ ♦❝❝✉rr✐♥❣ ✐♥ ❙ ✇❤❡r❡ t❥ ∈ ❍✐−✶ ❥ = ✶, · · · , ♥✳ ❍✐ ✐s ❝❛❧❧❡❞ t❤❡ ✐t❤ ❧❡✈❡❧ ❝♦♥st❛♥t s❡t ♦❢ ❙ ❍∞ ✐s ❝❛❧❧❡❞ t❤❡ ❤❡r❜r❛♥❞ ✉♥✐✈❡rs❡ ♦❢ ❙

slide-8
SLIDE 8

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❛♠♣❧❡ ♦❢ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ■

❊①❛♠♣❧❡ ✭♥♦ ❢✉♥❝t✐♦♥✮ ▲❡t ❙ = {P(①) ∨ ◗(①), ❘(③), ❚(②) ∨ ¬❲ (②)} ◆♦ ❢✉♥❝t✐♦♥

✶ ❍✵

❛ ✭♥♦ ❝♦♥st❛♥t✮

✷ ❍✶

❍✵ ✭♥♦ ❢✉♥❝t✐♦♥✮

✸ ✹ ❍

slide-9
SLIDE 9

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❛♠♣❧❡ ♦❢ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ■

❊①❛♠♣❧❡ ✭♥♦ ❢✉♥❝t✐♦♥✮ ▲❡t ❙ = {P(①) ∨ ◗(①), ❘(③), ❚(②) ∨ ¬❲ (②)} ◆♦ ❢✉♥❝t✐♦♥

✶ ❍✵ = {❛} ✭♥♦ ❝♦♥st❛♥t✮ ✷ ❍✶ = ❍✵ ✭♥♦ ❢✉♥❝t✐♦♥✮ ✸ · · · ✹ ❍∞ = {❛}

slide-10
SLIDE 10

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❛♠♣❧❡ ♦❢ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ■■

❊①❛♠♣❧❡ ✭♦♥❡ ❢✉♥❝t✐♦♥✮ ▲❡t ❙ = {P(❛), ¬P(①) ∨ P(❢ (①))}

✶ ❍✵

❛ ✭❛❧❧ ❝♦♥st❛♥ts✮

✷ ❍✶

❛ ❢ ❛ ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s ✐♥ ❍✵ ✉♥✐♦♥ ❍✵✮

✸ ❍✷

❛ ❢ ❛ ❢ ❢ ❛ ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s ✐♥ ❍✶ ✉♥✐♦♥ ❍✶✮

✹ ✺ ❍

❛ ❢ ❛ ❢ ❢ ❛ ❢ ❢ ❢ ❛

slide-11
SLIDE 11

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❛♠♣❧❡ ♦❢ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ■■

❊①❛♠♣❧❡ ✭♦♥❡ ❢✉♥❝t✐♦♥✮ ▲❡t ❙ = {P(❛), ¬P(①) ∨ P(❢ (①))}

✶ ❍✵ = {❛} ✭❛❧❧ ❝♦♥st❛♥ts✮ ✷ ❍✶ = {❛, ❢ (❛)} ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s ✐♥ ❍✵

✉♥✐♦♥ ❍✵✮

✸ ❍✷ = {❛, ❢ (❛), ❢ (❢ (❛))} ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s

✐♥ ❍✶ ✉♥✐♦♥ ❍✶✮

✹ · · · ✺ ❍∞ = {❛, ❢ (❛), ❢ (❢ (❛)), ❢ (❢ (❢ ((❛)))), · · · }

slide-12
SLIDE 12

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❛♠♣❧❡ ♦❢ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ■■■

❊①❛♠♣❧❡ ✭t✇♦ ❢✉♥❝t✐♦♥s✮ ▲❡t ❙ = {P(❢ (①), ❛, ❣(②), ❜)}

✶ ❍✵

❛ ❜ ✭❛❧❧ ❝♦♥st❛♥ts✮

✷ ❍✶

❛ ❜ ❢ ❛ ❣ ❛ ❢ ❜ ❣ ❜ ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s ✐♥ ❍✵ ✉♥✐♦♥ ❍✵✮

✸ ❍✷

❛ ❜ ❢ ❛ ❣ ❛ ❢ ❜ ❣ ❜ ❢ ❢ ❛ ❢ ❣ ❛ ❢ ❢ ❜ ❢ ❣ ❜ ❣ ❢ ❛ ❣ ❣ ❛ ❣ ❢ ❜ ❣ ❣ ❜ ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s ✐♥ ❍✶ ✉♥✐♦♥ ❍✶✮

slide-13
SLIDE 13

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❛♠♣❧❡ ♦❢ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ■■■

❊①❛♠♣❧❡ ✭t✇♦ ❢✉♥❝t✐♦♥s✮ ▲❡t ❙ = {P(❢ (①), ❛, ❣(②), ❜)}

✶ ❍✵ = {❛, ❜} ✭❛❧❧ ❝♦♥st❛♥ts✮ ✷ ❍✶ = {❛, ❜, ❢ (❛), ❣(❛), ❢ (❜), ❣(❜)} ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦

❛❧❧ t❡r♠s ✐♥ ❍✵ ✉♥✐♦♥ ❍✵✮

✸ ❍✷ = {❛, ❜, ❢ (❛), ❣(❛), ❢ (❜), ❣(❜), ❢ (❢ (❛)), ❢ (❣(❛)), ❢ (❢ (❜))

, ❢ (❣(❜)), ❣(❢ (❛)), ❣(❣(❛)), ❣(❢ (❜)), ❣(❣(❜))} ✭❛❧❧ ❢✉♥❝t✐♦♥s ❛♣♣❧✐❡❞ t♦ ❛❧❧ t❡r♠s ✐♥ ❍✶ ✉♥✐♦♥ ❍✶✮

✹ · · ·

slide-14
SLIDE 14

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❡r❝✐s❡

❊①❛♠♣❧❡ ▲❡t ❋ = ∀①(P(①) → ◗(①)) ∧ ∃②P(②) ∧ ∀③¬◗(③) ❙ = ¬P(①) ∨ ◗(①), P(❛), ¬◗(③) ❙′ = ¬P(①) ∨ ◗(①), P(❢ (①)), ¬◗(③) ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❢♦r ❙

✶ ❍✵

❍✶ ❍ ❛ ✳ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❢♦r ❙

✶ ❍✵

✷ ❍✷

❛ ❢ ❛

✸ ✹ ❍

❛ ❢ ❛ ❢ ❢ ❛ ✳

slide-15
SLIDE 15

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❡r❝✐s❡

❊①❛♠♣❧❡ ▲❡t ❋ = ∀①(P(①) → ◗(①)) ∧ ∃②P(②) ∧ ∀③¬◗(③) ❙ = ¬P(①) ∨ ◗(①), P(❛), ¬◗(③) ❙′ = ¬P(①) ∨ ◗(①), P(❢ (①)), ¬◗(③) ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❢♦r ❙

✶ ❍✵ = ❍✶ = · · · = ❍∞ = {❛}✳

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❢♦r ❙

✶ ❍✵

✷ ❍✷

❛ ❢ ❛

✸ ✹ ❍

❛ ❢ ❛ ❢ ❢ ❛ ✳

slide-16
SLIDE 16

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❡r❝✐s❡

❊①❛♠♣❧❡ ▲❡t ❋ = ∀①(P(①) → ◗(①)) ∧ ∃②P(②) ∧ ∀③¬◗(③) ❙ = ¬P(①) ∨ ◗(①), P(❛), ¬◗(③) ❙′ = ¬P(①) ∨ ◗(①), P(❢ (①)), ¬◗(③) ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❢♦r ❙

✶ ❍✵ = ❍✶ = · · · = ❍∞ = {❛}✳

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❢♦r ❙′

✶ ❍✵ = {❛} ✷ ❍✷ = {❛, ❢ (❛)} ✸ · · · ✹ ❍∞ = {❛, ❢ (❛), ❢ (❢ (❛)), · · · }✳

slide-17
SLIDE 17

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍❡r❜r❛♥❞ ❇❛s❡

❉❡✜♥✐t✐♦♥ ✭❍❡r❜r❛♥❞ ❜❛s❡✮ ▲❡t ❙ ❜❡ ❛ s❡t ♦❢ ❝❧❛✉s❡s✳ t❤❡ ❍❡r❜r❛♥❞ ❇❛s❡ ❢♦r ❙ ✐s t❤❡ s❡t ♦❢ ❛❧❧ ❣r♦✉♥❞ ❛t♦♠s ♦❢ t❤❡ ❢♦r♠ P♥(t✶, · · · , t♥) ❢♦r ❛❧❧ ♥ − ♣❧❛❝❡❞ ♣r❡❞✐❝❛t❡s ♦❝❝✉rr✐♥❣ ✐♥ ❙✱ ✇❤❡r❡ t❥ ❥ = ✶, · · · , ♥ ❛r❡ ❡❧❡♠❡♥ts ♦❢ t❤❡ ❍❡r❜r❛♥❞ ✉♥✐✈❡rs❡ ♦❢ ❙✳

slide-18
SLIDE 18

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❍❡r❜r❛♥❞ ❇❛s❡✿ ❊①❛♠♣❧❡

❊①❛♠♣❧❡ ▲❡t ❙ = {P(❢ (①)), ◗(❣(❝))} ❚❤❡ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡✿ {❝, ❢ (❝), ❣(❝), ❢ (❢ (❝)), ❢ (❣(❝)), ❣(❢ (❝)), ❣(❣(❝)), · · · } ❚❤❡ ❍❡r❜r❛♥❞ ❇❛s❡✿ {P(❝), ◗(❝), P(❢ (❝)), P(❣(❝)), ◗(❢ (❝)) ◗(❣(❝)), P(❢ (❢ (❝))), P(❢ (❣(❝))), · · · }

slide-19
SLIDE 19

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

  • r♦✉♥❞ ■♥st❛♥❝❡s ❢♦r ❈❧❛✉s❡s

❉❡✜♥✐t✐♦♥ ✭●r♦✉♥❞ ✐♥st❛♥❝❡s ❢♦r ❛♥ ❍❡r❜r❛♥❞ ❇❛s❡✮ ❆ ❣r♦✉♥❞ ✐♥st❛♥❝❡ ♦❢ ❛ ❝❧❛✉s❡ ❈ ♦❢ ❛ s❡t ❙ ♦❢ ❝❧❛✉s❡s ✐s ❛ ❝❧❛✉s❡ ♦❜t❛✐♥❡❞ ❜② r❡♣❧❛❝✐♥❣ ✈❛r✐❛❜❧❡s ✐♥ ❈ ❜② ♠❡♠❜❡rs ♦❢ t❤❡ ❍❡r❜r❛♥❞ ✉♥✐✈❡rs❡ ❊①❛♠♣❧❡ ✭●r♦✉♥❞ ✐♥st❛♥❝❡s ❢♦r ❛♥ ❍❡r❜r❛♥❞ ❇❛s❡✮ ▲❡t ❙ = {P(①), ◗(❢ (②)) ∨ ❘(②)}

✶ ❈ = P(①) ✐s ❛ ❝❧❛✉s❡ ✷ ❍ = {❛, ❢ (❛), ❢ (❢ (❛)), · · · } ✸ P(❢ (❛)) ❛♥❞ P(❛) ❛r❡ ❣r♦✉♥❞ ✐♥st❛♥❝❡s ♦❢ ❈✳

slide-20
SLIDE 20

❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ❛♥❞ ❍❡r❜r❛♥❞ ❇❛s❡

❊①❡r❝✐s❡s

❊①❡r❝✐s❡

  • ✐✈❡♥ ❙ = {P(❢ (①), ❛, ❣(❢ (①), ❜))}

✶ ❋✐♥❞ ❍✵ ❛♥❞ ❍✶ ✷ ❋✐♥❞ ❛❧❧ t❤❡ ❣r♦✉♥❞ ✐♥st❛♥❝❡s ♦❢ ❙ ♦✈❡r ❍✵ ✸ ❋✐♥❞ ❛❧❧ t❤❡ ❣r♦✉♥❞ ✐♥st❛♥❝❡s ♦❢ ❙ ♦✈❡r ❍✶

▲❡t ❋ ❜❡ ❛ ❢♦r♠✉❧❛ ❛♥❞ ❧❡t ❙ ❞❡♥♦t❡ t❤❡ st❛♥❞❛r❞ ❢♦r♠ ♦❢ ¬❋✳ ❋✐♥❞ t❤❡ ♥❡❝❡ss❛r② ❛♥❞ s✉✣❝✐❡♥t ❝♦♥❞✐t✐♦♥ ❢♦r ❋ s✉❝❤ t❤❛t t❤❡ ❍❡r❜r❛♥❞ ❯♥✐✈❡rs❡ ♦❢ ❙ ✐s ✜♥✐t❡✳