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| Alphabetical [« »] premising 2 premiss 59 premiss-never 1 premisses 153 premisses-a 2 premisses-has 1 premisses-i 2 | Frequency [« »] 163 by 160 must 159 from 153 premisses 152 knowledge 149 other 148 have | Aristotle Posterior Analytics IntraText - Concordances premisses |
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1 I, 1 | audience that accepts its premisses, induction exhibiting the 2 I, 2 | knowing is correct, the premisses of demonstrated knowledge 3 I, 2 | not be demonstration. The premisses must be true: for that which 4 I, 2 | commensurate with its side. The premisses must be primary and indemonstrable; 5 I, 2 | demonstration of them. The premisses must be the causes of the 6 I, 2 | another. In saying that the premisses of demonstrated knowledge 7 I, 2 | the facts constituting its premisses, we must not only know the 8 I, 2 | love. So since the primary premisses are the cause of our knowledge-i. 9 I, 2 | of our knowledge of the premisses. Now a man cannot believe 10 I, 2 | contradicting the fundamental premisses which lead to the opposed 11 I, 3 | necessity of knowing the primary premisses, there is no scientific 12 I, 3 | necessary deduction from the premisses. The first school, assuming 13 I, 3 | terminates and there are primary premisses, yet these are unknowable 14 I, 3 | cannot know the primary premisses, knowledge of the conclusions 15 I, 3 | mere supposition that the premisses are true. The other party 16 I, 3 | knowledge of the immediate premisses is independent of demonstration. ( 17 I, 3 | since we must know the prior premisses from which the demonstration 18 I, 3 | demonstration must be based on premisses prior to and better known 19 I, 3 | necessary consequent: two premisses constitute the first and 20 I, 3 | proves both the original premisses. Propositions the terms 21 I, 4 | inference from necessary premisses. So we must consider what 22 I, 4 | must consider what are the premisses of demonstration-i.e. what 23 I, 6 | It follows from this that premisses of the demonstrative syllogism 24 I, 6 | developed from necessary premisses. For though you may reason 25 I, 6 | you may reason from true premisses without demonstrating, yet 26 I, 6 | demonstrating, yet if your premisses are necessary you will assuredly 27 I, 6 | proceeds from necessary premisses is also indicated by the 28 I, 6 | development of necessary premisses is as follows. Where demonstration 29 I, 6 | necessary; just as true premisses always give a true conclusion. 30 I, 6 | fact and from immediate premisses.~Of accidents that are not 31 I, 6 | such and such determinate premisses should be proposed in order 32 I, 6 | the conclusions and the premisses of demonstrations which 33 I, 6 | so even if the accidental premisses are invariable but not essential, 34 I, 7 | axioms, i.e. axioms which are premisses of demonstration; (3) the 35 I, 7 | demonstration. The axioms which are premisses of demonstration may be 36 I, 8 | is also clear that if the premisses from which the syllogism 37 I, 9 | indemonstrable, and immediate premisses does not constitute knowledge. 38 I, 9 | an inference from basic premisses essential and "appropriate" 39 I, 9 | and as inferred from basic premisses essential and "appropriate" 40 I, 9 | knowledge is from prior premisses when it derives from causes 41 I, 9 | reasoned from true and primary premisses. But that is not so: the 42 I, 10| previous conclusions as premisses. Astronomy too proceeds 43 I, 10| axioms, which are primary premisses of its demonstration; (3) 44 I, 10| attributes, and the basic premisses.~That which expresses necessary 45 I, 10| hypotheses: but it is in the premisses of a science that its hypotheses 46 I, 11| axioms which are used as premisses of demonstration, not the 47 I, 12| interrogative form of the premisses from which the "appropriate" 48 I, 12| be geometrical which form premisses for the proof of the theorems 49 I, 12| anything from geometrical premisses, he is clearly to be applauded; 50 I, 12| conclusion one constructed from premisses opposite to the true premisses, 51 I, 12| premisses opposite to the true premisses, or is it formal fallacy 52 I, 12| though drawn from geometrical premisses? Or, perhaps, the erroneous 53 I, 12| is due to the drawing of premisses from another science; e.g. 54 I, 12| error, i.e. error based on premisses of this kind-"of" the science 55 I, 12| of an "objection"; since premisses and "objections" are so 56 I, 12| impossible to reason from premisses predicating mere attributes: 57 I, 12| is overlooked. If false premisses could never give true conclusions " 58 I, 12| resolution" would be easy, for premisses and conclusion would in 59 I, 12| from B.~Reciprocation of premisses and conclusion is more frequent 60 I, 13| in two ways: (1) when the premisses of the syllogism are not 61 I, 13| reasoned fact): (2) when the premisses are immediate, but instead 62 I, 14| closepacked until immediate premisses are reached.~Clearly, therefore, 63 I, 15| premiss, but not if both premisses are negative.~Hence it is 64 I, 16| possible. Either (a) both premisses, or (b) one premiss only, 65 I, 16| posited in both cases, both premisses will be false. (C may quite 66 I, 16| things. Consequently both premisses may be false.) On the other 67 I, 16| other hand, (b) one of the premisses may be true, though not 68 I, 16| and the character of the premisses in each case.~(c) It may 69 I, 16| It may occur when both premisses are false; e.g. supposing 70 I, 16| is and all B is C, both premisses are false.~(d) It is also 71 I, 16| true, and besides if both premisses were true, the conclusion 72 I, 16| that whether either or both premisses are false, the conclusion 73 I, 16| In the second figure the premisses cannot both be wholly false; 74 I, 16| denied of the other: but premisses in which the middle is affirmed 75 I, 16| nothing to prevent both premisses being partially false; e.g. 76 I, 16| is C and no B is C, both premisses are false, yet partially, 77 I, 16| possible not only when both premisses are false but also when 78 I, 17| only the major and not both premisses can be false. By "appropriate 79 I, 17| predicable of no B, both premisses must be false, because if 80 I, 17| no B is D; then if these premisses are changed in quality, 81 I, 17| follow and both of the new premisses will be false. When, however, ( 82 I, 17| the second figure, both premisses cannot be entirely false; 83 I, 17| and through what kinds of premisses error will result in cases 84 I, 17| term. In this case both premisses cannot be false since, as 85 I, 17| the major, not only both premisses but either singly may be 86 I, 17| and through what kinds of premisses they occur, in the case 87 I, 19| negative and one of its premisses asserts one term of another, 88 I, 19| our inference is based on premisses as credible as possible: 89 I, 19| negative conclusions and premisses: viz. if A is attributable 90 I, 21| figure, we shall take as premisses, all E is B, some E is not 91 I, 22| through an antecedent (viz. premisses prior to it) and we neither 92 I, 23| same group of immediate premisses; for we have seen that processes 93 I, 23| such a conclusion are the premisses containing the middle in 94 I, 23| terms that are the basic premisses on which the demonstration 95 I, 23| does not inhere in B the premisses required are, all B is C, 96 I, 23| is not D by means of the premisses, all D is C; no E, or not 97 I, 25| hypotheses-in short from fewer premisses; for, given that all these 98 I, 25| Hence demonstration by fewer premisses is ceteris paribus superior. 99 I, 25| through three terms and two premisses, but whereas the former 100 I, 25| conclusion follows if both premisses are negative, but that one 101 I, 25| expands, the affirmative premisses must increase in number, 102 I, 25| C is B. Then if both the premisses are to be again expanded, 103 I, 25| negative premiss, the other premisses being affirmative. If, then, 104 I, 25| which uses superior basic premisses is superior.~(4) Affirmative 105 I, 26| that no C is A. If these premisses are assumed, therefore, 106 I, 26| that denying A of C; for premisses are prior to the conclusion 107 I, 26| no B is A" one of its premisses. For the destructive result 108 I, 26| are its antecedents proper premisses. On the contrary: the constituents 109 I, 26| constituents of syllogism are premisses related to one another as 110 I, 26| part to whole, whereas the premisses A-C and A-B are not thus 111 I, 26| from better known and prior premisses, and while both these forms 112 I, 28| reach the indemonstrable premisses of a science, for they must 113 I, 30| from necessary or general premisses, the conclusion being necessary 114 I, 30| conclusion being necessary if the premisses are necessary and general 115 I, 30| necessary and general if the premisses are general. Consequently, 116 I, 32| inference is possible from false premisses, yet this occurs once only-I 117 I, 32| are taken to prove these premisses, they will be false because 118 I, 32| is a falsehood has false premisses, while true conclusions 119 I, 32| true conclusions have true premisses, and false and true differ 120 I, 32| excluded middle-serve as premisses for the proof of all conclusions. 121 I, 32| the basic truths are the premisses, and the premisses are formed 122 I, 32| are the premisses, and the premisses are formed by the apposition 123 I, 32| the mass of all possible premisses any conclusion may be drawn. 124 I, 32| since it is the immediate premisses which are the basic truths, 125 I, 32| these primary immediate premisses which are basic truths, 126 I, 32| the mass of all possible premisses any conclusion may be proved, 127 I, 32| within one genus, special premisses are required to prove special 128 I, 32| two kinds, those which are premisses of demonstration and the 129 I, 33| terms until the immediate premisses are reached; because it 130 I, 33| obtained through immediate premisses, will be both of the fact 131 II, 3 | demonstrable.~Moreover, the basic premisses of demonstrations are definitions, 132 II, 3 | indemonstrable; either the basic premisses will be demonstrable and 133 II, 3 | and will depend on prior premisses, and the regress will be 134 II, 4 | to its essence. So both premisses will predicate essence, 135 II, 4 | Since, therefore, both premisses do predicate essence-i.e. 136 II, 4 | premisses-i.e. in which the premisses are primary and immediate-which 137 II, 4 | unless one takes both the premisses as predicating essence, 138 II, 5 | follow necessarily from its premisses, even if the respondent 139 II, 5 | follow necessarily from the premisses: this too is an assumption, 140 II, 5 | inference follows from the premisses is open to a question as 141 II, 6 | inference is (since the premisses from which we conclude must 142 II, 6 | syllogism but remain outside the premisses posited. It is only against 143 II, 7 | following from the assumption of premisses admitted to be facts-the 144 II, 8 | found the answer, if the premisses are immediate, we know fact 145 II, 9 | immediate, that is are basic premisses; and of these not only that 146 II, 12| derive from immediate basic premisses.~ 147 II, 18| 18~If immediate premisses are not reached at once, 148 II, 19| demonstration. As to the basic premisses, how they become known and 149 II, 19| knows the primary immediate premisses. But there are questions 150 II, 19| apprehension of these immediate premisses: one might not only ask 151 II, 19| get to know the primary premisses by induction; for the method 152 II, 19| knowledge, whereas primary premisses are more knowable than demonstrations, 153 II, 19| knowledge of the primary premisses, and since except intuition