:: DICKSON semantic presentation
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theorem Th1: :: DICKSON:1
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theorem Th2: :: DICKSON:2
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for
n being
Nat holds
n c= n + 1
theorem Th3: :: DICKSON:3
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:: deftheorem defines ascending DICKSON:def 1 :
:: deftheorem Def2 defines weakly-ascending DICKSON:def 2 :
theorem Th4: :: DICKSON:4
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theorem Th5: :: DICKSON:5
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theorem :: DICKSON:6
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canceled;
theorem Th7: :: DICKSON:7
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theorem Th8: :: DICKSON:8
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:: deftheorem Def3 defines quasi_ordered DICKSON:def 3 :
:: deftheorem Def4 defines EqRel DICKSON:def 4 :
theorem Th9: :: DICKSON:9
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definition
let R be
RelStr ;
func <=E R -> Relation of
Class (EqRel R) means :
Def5:
:: DICKSON:def 5
for
A,
B being
set holds
(
[A,B] in it iff ex
a,
b being
Element of
R st
(
A = Class (EqRel R),
a &
B = Class (EqRel R),
b &
a <= b ) );
existence
ex b1 being Relation of Class (EqRel R) st
for A, B being set holds
( [A,B] in b1 iff ex a, b being Element of R st
( A = Class (EqRel R),a & B = Class (EqRel R),b & a <= b ) )
uniqueness
for b1, b2 being Relation of Class (EqRel R) st ( for A, B being set holds
( [A,B] in b1 iff ex a, b being Element of R st
( A = Class (EqRel R),a & B = Class (EqRel R),b & a <= b ) ) ) & ( for A, B being set holds
( [A,B] in b2 iff ex a, b being Element of R st
( A = Class (EqRel R),a & B = Class (EqRel R),b & a <= b ) ) ) holds
b1 = b2
end;
:: deftheorem Def5 defines <=E DICKSON:def 5 :
theorem Th10: :: DICKSON:10
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theorem :: DICKSON:11
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:: deftheorem defines \~ DICKSON:def 6 :
:: deftheorem defines \~ DICKSON:def 7 :
theorem :: DICKSON:12
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theorem :: DICKSON:13
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theorem :: DICKSON:14
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theorem :: DICKSON:15
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theorem Th16: :: DICKSON:16
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theorem Th17: :: DICKSON:17
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theorem Th18: :: DICKSON:18
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theorem :: DICKSON:19
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:: deftheorem Def8 defines min-classes DICKSON:def 8 :
theorem Th20: :: DICKSON:20
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theorem Th21: :: DICKSON:21
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theorem Th22: :: DICKSON:22
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theorem Th23: :: DICKSON:23
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theorem Th24: :: DICKSON:24
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theorem :: DICKSON:25
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:: deftheorem Def9 defines is_Dickson-basis_of DICKSON:def 9 :
theorem Th26: :: DICKSON:26
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theorem Th27: :: DICKSON:27
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:: deftheorem Def10 defines Dickson DICKSON:def 10 :
theorem Th28: :: DICKSON:28
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theorem Th29: :: DICKSON:29
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:: deftheorem Def11 defines mindex DICKSON:def 11 :
:: deftheorem Def12 defines mindex DICKSON:def 12 :
theorem Th30: :: DICKSON:30
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theorem Th31: :: DICKSON:31
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theorem Th32: :: DICKSON:32
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theorem Th33: :: DICKSON:33
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theorem Th34: :: DICKSON:34
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theorem :: DICKSON:35
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:: deftheorem Def13 defines Dickson-bases DICKSON:def 13 :
theorem Th36: :: DICKSON:36
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theorem Th37: :: DICKSON:37
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theorem Th38: :: DICKSON:38
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theorem Th39: :: DICKSON:39
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theorem Th40: :: DICKSON:40
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theorem Th41: :: DICKSON:41
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theorem Th42: :: DICKSON:42
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theorem Th43: :: DICKSON:43
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Lm1:
for p being RelStr-yielding ManySortedSet of {} holds
( not product p is empty & product p is quasi_ordered & product p is Dickson & product p is antisymmetric )
:: deftheorem defines NATOrd DICKSON:def 14 :
theorem Th44: :: DICKSON:44
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theorem Th45: :: DICKSON:45
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theorem Th46: :: DICKSON:46
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theorem Th47: :: DICKSON:47
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:: deftheorem defines OrderedNAT DICKSON:def 15 :
theorem :: DICKSON:48
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theorem Th49: :: DICKSON:49
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theorem :: DICKSON:50
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