Page 204 - ibdaa

203 Ÿ-b<¡~9¡EH Ÿ-bJxƒF ˆ*]+°( *
62b~zD* –~|ŒD*

™•†gDb+ bŒg0°*H ™£˜†gD*

GENERALIZATION AND MAINTENANCE

¤A £c€gD* ¢D(* ŸJx: ]mJ ° ]B ~|D* fAx= ¤A Ÿ†˜~zJ H*& dDb€D* Ÿ•cg~zJ bE &* f£)*x/(°* d£Db~6&°* e¡£< œE (*
f£›- ”b›G *& „pD* œ~z0 œE œ’D b˜K )*2 Ÿm)bgF ™˜†- ° ]A ¤˜~6xD* ™£•†gD* ™ƒ†E ¢•< ‘]~|J *wGH f£†£c€D* f_£cD*
bC *3*( ŸF°& ‡€gE –’~{+ yJy†gD* š]Q J bE]›< Ÿ.H]0 ‡B¡g£A bŒg0°* bE&* xJb+H zC¡’g~6 bŒg0°*H ™£˜†g•D
H2 i*xE ‡+4&* H&* lÉ. ”¡•~zD* 4¡ž; 2xm˜+ l]p£~6 $bŒ:°* (bA Ÿ£•< 2b˜g<°* eɀ•D œ’˜JH yJy†gDb+ $¡c›gD* œ’˜J
|•F ™. yJy†gD* œE x£cC 4*]˜+ *& ]cF *& –~¦A&°*H ¤mJ4]- –’~{+ ”xpgD* ™ž˜D* œE (* Ix1*& ,xE —¡F b›GH yJy†-
*3*( A ‡€g˜D* yJy†gD* š*]sg~6* œ’˜J b˜C ]0*H 5yQ †E –/*& œE ¢g0 hB¡D* ¦†cD eɀD* –˜†J b& C b£K mJ4]- —H]mD*

yJy†gDb+ ¡' c›g•D f£•+bB –B*& —H]/ ¢D*( h+b. —H]/ œE b£K mJ4]- ”xpgJ —H]mD* bC

f£†£c€D* f_£cD*H ~|D* ÉK jE fž+b~{E ,]J]/ B*¡E xc< œ£†E 642 H&* f›£†E ,4bžE c€- bE]›< ™£˜†gD* l]pJH
¥wD* $¤~{D* f˜£B eɀD* ”4]J bE]›< ™£˜†gD* lH]0 ‡B¡gJH x1%° hBH œE šH]J H&* ™•†gD* hcjJ bE]›< bŒg0°* l]pJH
Ix1&* B*¡E ¤AH 0° hBH ¤A bž+ *Hx’ŒJ &* ™ž›E ‡B¡gJ b˜C œJ4b˜gD* –0H 6H4]D* x£~¦p- ™žJ]D ]JyJ k£0 ŸF¡˜•†gJ
$b£~7&°* i°b˜†g~6* f•_~6&* I¡~6 ™•†˜D* š]sg~zJ ™D *3* —bj˜D* –£c~6 ¢•†A œJ4b˜gD* ˆ¡›g- bE]›< ™£˜†gD* œ~zpgJ &* ‡B¡gJ b˜C
Ž¡~6 fDb~8&°*H fFHx˜D*H 4b’A°& * œJ¡’- ¤A fBɀD* *& ¡C4]J ° ]A —H]/ xƒF* eɀ•D Ÿ£€†J ¥wD* œJx˜gD* ¤A
f•jE&°* ex~9 –/*& œE œ’DH wG i°b˜†g~6°* šbžE 64b˜J ™•†˜D* bC *3*H x1%* ˆ¡F œE f0¡gŒE šbžE w£Œ›- ¤A ™G]<b~z-
–~|ŒD* ¤A {Bb›g~6 ¤gD* ¥]<bcgD* x£’ŒgD* šbžE 4¡~8 œE bGx£= b˜+4H ¤Fb†˜D* o3b˜F œ< kpc•D H*& ibž+b~{gD* ]< H*&
ib_£cD* ¤A fŒ•gs˜D* šbž˜D* ¢•< bž£c€- œ’˜J f<¡›g˜D* 4b’A°& * œJ¡’- i*4bžE &* ”4]J &* dDb€D* œE ‡B¡gJ ŸF(bA ‡~6bgD*

b›G ÉK ˜gpE ¡’J ™£˜†gD* *& ¥*& fŒ•gs˜D*

š¡J *& šbž˜D* wG ¤A d•€J k£0 ‡~6bgD* –~|ŒD* ¤A bž›E *2K ]< b›~9x< ]BH ™£˜†gD* ¢•< ‡m~{- f£†B*¡D* šbž˜D* *(
&* –˜gpJ ¤DbgDb+H ¤<*]+°( * x£’ŒgD* –ž~z- &* f˜ž˜•D ¤‰c›JH bG¡ž/*¡J *& –˜gpJ H&* ÉK †A bG¡ž/*H iɒ~{E –p+ eɀD*
f£†B*H ¥]<bc- x£’Œ- šbžE "]Fb~{-"H "¡’F4" š]sg~6* —bj˜D* –£c~6 ¢•†A Ÿ•˜< –ž~zJ $¤~7 *wGH f0¡gŒE ¡’-
xjC&* f£†£c€D* f_£cD* ¤A ¤<*]+*( 5bmF(b+ $¤c›J f£†B*¡D* šbž˜D* ¤A $*2&°* *& *]Q C*& H fpJx~|D* ib˜£•†gD* x.°& b˜žg~6*42 ¤A
bK +b~6 bGb›~9x< ¤gD* “•gC f•’~{˜D* 2bmJ*( šbžE b˜žg~6*42 ¤A bj0bcD* *wG –12&* ]BH f£†B*¡D* x£= šbž˜D* ¤A $*2&°* œE

w£Œ›- ¤A f•)bG ,]<b~zE eɀ•D xA¡J k£0 b~¦K J*& Fading ¤~7ÉgD* ™~6b+ ŽHx†˜D* ¤)*x/°( * e¡•~6&°* š*]sg~6* œ’˜JH
bžD dDb€D* rb-xJ šbž˜D* “•- b-(* –˜g’J bE]›<H f£~6]0H f£G]+H f•ž~6 ¡’- *& ]Q +° šbž˜D* wGH f£<*]+(°* šbž˜D*
bžžc~7 ]J*ygJ *& ¤Œ’J –+ fc†~8 f˜ž˜D* ¡’- *& ¤›†J ° b›G ¥]pgD*H ÉK £•B xcC&* ]Q p- ¢•< ¥¡€›- Ix1*& šbžE ŸD š]- ™.

f£†£c€D* f_£cD* ¤A ]/¡- &* œ’˜J ¤gD* iɒ~{˜D* ‚b˜Fb& +

™•†J bC $b+%°* ]0&* *& dG *xK £jC “D3 ¤A *Hx’ŒJ *& H2 ¤~7ÉgD* œE bE ÉK ’~7 œ£˜•†˜D*H $b+°& * œE x£jC š]sg~zJH
–Œ€D* bž+x~¦J ¢g0 ,x’D* “~z˜J ™. ,x’•D fŒ£Œ1 œ’DH ,x£cC f+x~¦+ fJ*]cD* ¤A &*]cJ ]B Baseball —¡c~z£cD* fc†D Ÿ•Œ:
]B ™. b£K mJ4]- ,]<b~z˜D* œ< ¢•sgJ &*]+ k£0 ¤~7ÉgDb+ b›G ]D*¡D* ”¡•~6 *& ]+ €•+ ,x’D* ]D*¡D* ex~¦J ]B hBH ]†+H
fJ¡B ,xC f+x~9 ¢D*( ¤žg›J ™. f˜<b›D* ,x’D* ¢D(* —¡pgJ ™. ,x’•D bAK ]G ‡~¦J ™. f££0 f+x~9 ¢D*( f0° f•0xE ¤A —¡pgJ
*wG œ’D ,x£1&°* f•0x˜D* ¤A f‰Dbc˜D* ¦†+ *wG ¤A –†D b›K ~z0 f<b~zD* ¤A ÉK £E f<x~z+ –Œ€D* ib+x~9 f€›E ¡pF