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Statement List for Quantum Logic Explorer - 701-800 - Page 8 of 12
TypeLabelDescription
Statement
 
Theoremu1lemc4 701 Lemma for Sasaki implication study.
 
Theoremu2lemc4 702 Lemma for Dishkant implication study.
 
Theoremu3lemc4 703 Lemma for Kalmbach implication study.
 
Theoremu4lemc4 704 Lemma for non-tollens implication study.
 
Theoremu5lemc4 705 Lemma for relevance implication study.
 
Theoremu1lemc6 706 Commutation theorem for Sasaki implication.
(a ->1 b) C (a' ->1 b)
 
Theoremcomi12 707 Commutation theorem for ->1 and ->2.
(a ->1 b) C (c ->2 a)
 
Theoremi1com 708 Commutation expressed with ->1.
b =< (a ->1 b)   =>   a C b
 
Theoremcomi1 709 Commutation expressed with ->1.
a C b   =>   b =< (a ->1 b)
 
Theoremu1lemle1 710 L.e. to Sasaki implication.
a =< b   =>   (a ->1 b) = 1
 
Theoremu2lemle1 711 L.e. to Dishkant implication.
a =< b   =>   (a ->2 b) = 1
 
Theoremu3lemle1 712 L.e. to Kalmbach implication.
a =< b   =>   (a ->3 b) = 1
 
Theoremu4lemle1 713 L.e. to non-tollens implication.
a =< b   =>   (a ->4 b) = 1
 
Theoremu5lemle1 714 L.e. to relevance implication.
a =< b   =>   (a ->5 b) = 1
 
Theoremu1lemle2 715 Sasaki implication to l.e.
(a ->1 b) = 1   =>   a =< b
 
Theoremu2lemle2 716 Dishkant implication to l.e.
(a ->2 b) = 1   =>   a =< b
 
Theoremu3lemle2 717 Kalmbach implication to l.e.
(a ->3 b) = 1   =>   a =< b
 
Theoremu4lemle2 718 Non-tollens implication to l.e.
(a ->4 b) = 1   =>   a =< b
 
Theoremu5lemle2 719 Relevance implication to l.e.
(a ->5 b) = 1   =>   a =< b
 
Theoremu1lembi 720 Sasaki implication and biconditional.
((a ->1 b) ^ (b ->1 a)) = (a == b)
 
Theoremu2lembi 721 Dishkant implication and biconditional.
((a ->2 b) ^ (b ->2 a)) = (a == b)
 
Theoremi2bi 722 Dishkant implication expressed with biconditional.
(a ->2 b) = (b v (a == b))
 
Theoremu3lembi 723 Kalmbach implication and biconditional.
((a ->3 b) ^ (b ->3 a)) = (a == b)
 
Theoremu4lembi 724 Non-tollens implication and biconditional.
((a ->4 b) ^ (b ->4 a)) = (a == b)
 
Theoremu5lembi 725 Relevance implication and biconditional.
((a ->5 b) ^ (b ->5 a)) = (a == b)
 
Theoremu12lembi 726 Sasaki/Dishkant implication and biconditional. Equation 4.14 of [MegPav2000] p. 23. The variable i in the paper is set to 1, and j is set to 2.
((a ->1 b) ^ (b ->2 a)) = (a == b)
 
Theoremu21lembi 727 Dishkant/Sasaki implication and biconditional.
((a ->2 b) ^ (b ->1 a)) = (a == b)
 
Theoremublemc1 728 Commutation theorem for biimplication.
a C (a == b)
 
Theoremublemc2 729 Commutation theorem for biimplication.
b C (a == b)
 
Some proofs contributed by Josiah Burroughs
 
Theoremu1lemn1b 730 This theorem continues the line of proofs such as u1lemnaa 640, ud1lem0b 256, u1lemnanb 655, etc. (Contributed by Josiah Burroughs 26-May-04.)
(a ->1 b) = ((a ->1 b)' ->1 b)
 
Theoremu1lem3var1 731 A 3-variable formula. (Contributed by Josiah Burroughs 26-May-04.)
(((a ->1 c) ^ (b ->1 c))' v (((a ->1 c)' ->1 c) ^ ((b ->1 c)' ->1 c))) = 1
 
Theoremoi3oa3lem1 732 An attempt at the OA3 conjecture, which is true if (a == b) = 1. (Contributed by Josiah Burroughs 27-May-04.)
1 = (b == a)   =>   (((a ->1 c) ^ (b ->1 c)) v (a ^ b)) = 1
 
Theoremoi3oa3 733 An attempt at the OA3 conjecture, which is true if (a == b) = 1. (Contributed by Josiah Burroughs 27-May-04.)
1 = (b == a)   =>   (((a ->1 c) ^ (b ->1 c)) v ((((a ->1 c) ^ (((a ->1 c) ^ (b ->1 c)) v (a ^ b))) ->1 c) ^ (((b ->1 c) ^ (((a ->1 c) ^ (b ->1 c)) v (a ^ b))) ->1 c))) = 1
 
More lemmas for unified implication
 
Theoremu1lem1 734 Lemma for unified implication study.
 
Theoremu2lem1 735 Lemma for unified implication study.
 
Theoremu3lem1 736 Lemma for unified implication study.
 
Theoremu4lem1 737 Lemma for unified implication study.
 
Theoremu5lem1 738 Lemma for unified implication study.
 
Theoremu1lem1n 739 Lemma for unified implication study.
 
Theoremu2lem1n 740 Lemma for unified implication study.
 
Theoremu3lem1n 741 Lemma for unified implication study.
 
Theoremu4lem1n 742 Lemma for unified implication study.
 
Theoremu5lem1n 743 Lemma for unified implication study.
 
Theoremu1lem2 744 Lemma for unified implication study.
 
Theoremu2lem2 745 Lemma for unified implication study.
 
Theoremu3lem2 746 Lemma for unified implication study.
 
Theoremu4lem2 747 Lemma for unified implication study.
 
Theoremu5lem2 748 Lemma for unified implication study.
 
Theoremu1lem3 749 Lemma for unified implication study.
 
Theoremu2lem3 750 Lemma for unified implication study.
 
Theoremu3lem3 751 Lemma for unified implication study.
 
Theoremu4lem3 752 Lemma for unified implication study.
 
Theoremu5lem3 753 Lemma for unified implication study.
 
Theoremu3lem3n 754 Lemma for unified implication study.
 
Theoremu4lem3n 755 Lemma for unified implication study.
 
Theoremu5lem3n 756 Lemma for unified implication study.
 
Theoremu1lem4 757 Lemma for unified implication study.
 
Theoremu3lem4 758 Lemma for unified implication study.
 
Theoremu4lem4 759 Lemma for unified implication study.
 
Theoremu5lem4 760 Lemma for unified implication study.
 
Theoremu1lem5 761 Lemma for unified implication study.
 
Theoremu2lem5 762 Lemma for unified implication study.
 
Theoremu3lem5 763 Lemma for unified implication study.
 
Theoremu4lem5 764 Lemma for unified implication study.
 
Theoremu5lem5 765 Lemma for unified implication study.
 
Theoremu4lem5n 766 Lemma for unified implication study.
 
Theoremu3lem6 767 Lemma for unified implication study.
 
Theoremu4lem6 768 Lemma for unified implication study.
 
Theoremu5lem6 769 Lemma for unified implication study.
 
Theoremu24lem 770 Lemma for unified implication study.
 
Theoremu12lem 771 Implication lemma.
((a ->1 b) v (a ->2 b)) = (a ->0 b)
 
Theoremu1lem7 772 Lemma for unified implication study.
 
Theoremu2lem7 773 Lemma for unified implication study.
 
Theoremu3lem7 774 Lemma for unified implication study.
 
Theoremu2lem7n 775 Lemma for unified implication study.
 
Theoremu1lem8 776 Lemma used in study of orthoarguesian law.
((a ->1 b) ^ (a' ->1 b)) = ((a ^ b) v (a' ^ b))
 
Theoremu1lem9a 777 Lemma used in study of orthoarguesian law. Equation 4.11 of [MegPav2000] p. 23. This is the first part of the inequality.
(a' ->1 b)' =< a'
 
Theoremu1lem9b 778 Lemma used in study of orthoarguesian law. Equation 4.11 of [MegPav2000] p. 23. This is the second part of the inequality.
a' =< (a ->1 b)
 
Theoremu1lem9ab 779 Lemma used in study of orthoarguesian law.
(a' ->1 b)' =< (a ->1 b)
 
Theoremu1lem11 780 Lemma used in study of orthoarguesian law.
((a' ->1 b) ->1 b) = (a ->1 b)
 
Theoremu1lem12 781 Lemma used in study of orthoarguesian law. Equation 4.12 of [MegPav2000] p. 23.
((a ->1 b) ->1 b) = (a' ->1 b)
 
Theoremu2lem8 782 Lemma for unified implication study.
 
Theoremu3lem8 783 Lemma for unified implication study.
 
Theoremu3lem9 784 Lemma for unified implication study.
 
Theoremu3lem10 785 Lemma for unified implication study.
 
Theoremu3lem11 786 Lemma for unified implication study.
 
Theoremu3lem11a 787 Lemma for unified implication study.
 
Theoremu3lem12 788 Lemma for unified implication study.
 
Theoremu3lem13a 789 Lemma for unified implication study.
 
Theoremu3lem13b 790 Lemma for unified implication study.
 
Theoremu3lem14a 791 Lemma for unified implication study.
 
Theoremu3lem14aa 792 Used to prove ->1 "add antecedent" rule in ->3 system.
(a ->3 (a ->3 ((b ->3 a') ->3 b'))) = 1
 
Theoremu3lem14aa2 793 Used to prove ->1 "add antecedent" rule in ->3 system.
(a ->3 (a ->3 (b ->3 (b ->3 a')'))) = 1
 
Theoremu3lem14mp 794 Used to prove ->1 modus ponens rule in ->3 system.
((a ->3 b')' ->3 (a ->3 (a ->3 b))) = 1
 
Theoremu3lem15 795 Lemma for Kalmbach implication.
 
Theoremu3lemax4 796 Possible axiom for Kalmbach implication system.
((a ->3 b) ->3 ((a ->3 b) ->3 ((b ->3 a) ->3 ((b ->3 a) ->3 ((c ->3 (c ->3 a)) ->3 (c ->3 (c ->3 b))))))) = 1
 
Theoremu3lemax5 797 Possible axiom for Kalmbach implication system.
((a ->3 b) ->3 ((a ->3 b) ->3 ((b ->3 a) ->3 ((b ->3 a) ->3 ((b ->3 c) ->3 ((b ->3 c) ->3 ((c ->3 b) ->3 ((c ->3 b) ->3 (a ->3 c))))))))) = 1
 
Theorembi1o1a 798 Equivalence to biconditional.
(a == b) = ((a ->1 (a ^ b)) ^ ((a v b) ->1 a))
 
Theorembiao 799 Equivalence to biconditional.
(a == b) = ((a ^ b) == (a v b))
 
Theoremi2i1i1 800 Equivalence to ->2.
(a ->2 b) = ((a ->1 (a v b)) ^ ((a v b) ->1 b))

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