79. Sandwiches are satisfying;
Nothing in this dish is unsatisfying.

80. No rich man begs in the street;
Those who are not rich should keep accounts.

81. Spiders spin webs;
Some creatures, that do not spin webs, are savage.

82. Some of these shops are not crowded;
No crowded shops are comfortable.

83. Prudent travelers carry plenty of small change;
Imprudent travelers lose their luggage.

84. Some geraniums are red;
All these flowers are red.

85. None of my cousins are just;
All judges are just.

86. No Jews are mad;
All my lodgers are Jews.

87. Busy folk are not always talking about their grievances;
Discontented folk are always talking about their grievances.

88. None of my cousins are just;
No judges are unjust.

89. All teetotalers like sugar;
No nightingale drinks wine.

90. No riddles interest me if they can be solved;
All these riddles are insoluble.

91. All clear explanations are satisfactory;
Some excuses are unsatisfactory.

92. All elderly ladies are talkative;
All good-tempered ladies are talkative.

93. No kind deed is unlawful;
What is lawful may be done without scruple.
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94. No babies are studious;
No babies are good violinists.

95. All shillings are round;
All these coins are round.

96. No honest men cheat;
No dishonest men are trustworthy.

97. None of my boys are clever;
None of my girls are greedy.

98. All jokes are meant to amuse;
No Act of Parliament is a joke.

99. No eventful tour is ever forgotten;
Uneventful tours are not worth writing a book about.

100. All my boys are disobedient;
All my girls are discontented.

101. No unexpected pleasure annoys me;
Your visit is an unexpected pleasure.

Sec. 6. EX6

_Trios of Abstract Propositions, proposed as Syllogisms: to be
examined._

1. Some x are m; No m are y'. Some x are y.

2. All x are m; No y are m'. No y are x'.

3. Some x are m'; All y' are m. Some x are y.

4. All x are m; No y are m. All x are y'.

5. Some m' are x'; No m' are y. Some x' are y'.

6. No x' are m; All y are m'. All y are x'.

7. Some m' are x'; All y' are m'. Some x' are y'.

8. No m' are x'; Al