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Re:Re:Hello People!
Hi i am Dragon, from Hong kong.
Would like very much to learn Cantonese. I speak English fluently.
Would love to learn n share if you are interested. My intention is simply learning. I am Kau chat Luk Paat, Yee Ng Sai Ng. I mean i only know to speak numbers but i want to learn grammatical and vocabulary Cantonese.
Hope to hear from you.
Take care.
Dragon,
Hong Kong.
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Language pair: English; Chinese, Cantonese
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Dragon I.
November 14, 2005
# Msgs: 1
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Solution to Logic Problem: Özhan # 60933
Problem:
A prisoner is kept in a room with two jailers.The room has two doors, one to freedoom, and the other to a certain death. The prisoner knows this, but he does not know which door is which. He also knows that one of his jailers always tells the truth, and the other always tells lies, but he does not know which jailer is the truth-teller and which is the liar. He is allowed to ask just ONE question of one of the jailers : he may choose which jailer to ask , and he may decide what question to ask.(Both jailers know which door is which, and each knows the other's lying or truthful disposition.) What single question can the prisoner ask in order to find out for certain which door leads to freedoom?
THE SOLUTION:
Warning: the following answer requires a very good understanding of the English subjunctive tense and a good sense of logic.
Let's name the doors 1 and 2.
You should ask either jailer the following question and that will give you sufficient information to decide:
If I _were_ to ask you "Does door 1 lead to freedom" would you answer "yes"?
(Call this subjunctive sentence "the complicated question" to be distinguished from "the simple" question," which is simply "Does door 1 lead to freedom?"
There are two possibilities: either the jailer you are asking is a liar or a truth-teller.
CASE 1:
Suppose the jailer is a truth-teller: then no problemo - if the jailer says "yes", then door 1 will lead to freedom, whereas, if the jailer says "no" then door 2 will lead to freedom. Either way if the jailer is truth-treller you will have sufficient information.
CASE 2: Suppose the jailer is a liar: then the jailer would also answer "yes" if door 1 leads to freedom and "no" if door 2 leads to freedom - exactly the same answer that the truth-teller would give. You will still have sufficient information to decide which door to take. I know this sounds counter-intuitive, but consider the only two possibilities Case 2a and case 2b:
Case 2a: Door 1 does lead to freedom. In this case if you asked the lying jailer the _simple_ question: "Does door 1 lead to freedom?", the jailer would have to lie and say "no". But if you ask him the complicated subjunctive question, in order to lie, he must answer "yes" _otherwise he would be telling the truth!_ Were you to ask the lying jailer _how_ he would answer your simple question he would lie and say "yes".
Case 2b: Door 2 leads to freedom. In this case, in order to lie, the lying jailer must answer "no" to the complicated question; he would answer "yes" to the simple question. Hence again, in this case the lying jailer would give the same answer as the the truth-telling jailer and you would have enough information to reach freedom.
So to conclude: if either jailer answers "yes" then door 1 leads to freedom, and if either answers "no" then door 2 leads to freedom.
QED
Reed
(By the way, I used to be a logic prof.)
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Language pair: English; All
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Reed
October 1, 2005
# Msgs: 1
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Re:A Logic Problem to Solve
Warning: the following answer requires a very good understanding of the English subjunctive tense and a good sense of logic.
Let's name the doors 1 and 2.
You should ask either jailer the following question and that will give you sufficient information to decide:
If I _were_ to ask you "Does door 1 lead to freedom" would you answer "yes"?
(Call this subjunctive sentence "the complicated question" to be distinguished from "the simple" question," which is simply "Does door 1 lead to freedom?"
There are two possibilities: either the jailer you are asking is a liar or a truth-teller.
CASE 1:
Suppose the jailer is a truth-teller: then no problemo - if the jailer says "yes", then door 1 will lead to freedom, whereas, if the jailer says "no" then door 2 will lead to freedom. Either way if the jailer is truth-treller you will have sufficient information.
CASE 2: Suppose the jailer is a liar: then the jailer would also answer "yes" if door 1 leads to freedom and "no" if door 2 leads to freedom - exactly the same answer that the truth-teller would give. You will still have sufficient information to decide which door to take. I know this sounds counter-intuitive, but consider the only two possibilities Case 2a and case 2b:
Case 2a: Door 1 does lead to freedom. In this case if you asked the lying jailer the _simple_ question: "Does door 1 lead to freedom?", the jailer would have to lie and say "no". But if you ask him the complicated subjunctive question, in order to lie, he must answer "yes" _otherwise he would be telling the truth!_ Were you to ask the lying jailer _how_ he would answer your simple question he would lie and say "yes".
Case 2b: Door 2 leads to freedom. In this case, in order to lie, the lying jailer must answer "no" to the complicated question; he would answer "yes" to the simple question. Hence again, in this case the lying jailer would give the same answer as the the truth-telling jailer and you would have enough information to reach freedom.
So to conclude: if either jailer answers "yes" then door 1 leads to freedom, and if either answers "no" then door 2 leads to freedom.
QED
(By the way, I used to be a logic prof.)
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Language pair: English; All
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Reed
October 1, 2005
# Msgs: 3
Latest: October 1, 2005
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Re:A Logic Problem to Solve
Warning: the following answer requires a very good understanding of the English subjunctive tense and a good sense of logic.
Let's name the doors 1 and 2.
You should ask either jailer the following question and that will give you sufficient information to decide:
If I _were_ to ask you "Does door 1 lead to freedom" would you answer "yes"?
(Call this subjunctive sentence "the complicated question" to be distinguished from "the simple" question," which is simply "Does door 1 lead to freedom?"
There are two possibilities: either the jailer you are asking is a liar or a truth-teller.
CASE 1:
Suppose the jailer is a truth-teller: then no problemo - if the jailer says "yes", then door 1 will lead to freedom, whereas, if the jailer says "no" then door 2 will lead to freedom. Either way if the jailer is truth-treller you will have sufficient information.
CASE 2: Suppose the jailer is a liar: then the jailer would also answer "yes" if door 1 leads to freedom and "no" if door 2 leads to freedom - exactly the same answer that the truth-teller would give. You will still have sufficient information to decide which door to take. I know this sounds counter-intuitive, but consider the only two possibilities Case 2a and case 2b:
Case 2a: Door 1 does lead to freedom. In this case if you asked the lying jailer the _simple_ question: "Does door 1 lead to freedom?", the jailer would have to lie and say "no". But if you ask him the complicated subjunctive question, in order to lie, he must answer "yes" _otherwise he would be telling the truth!_ Were you to ask the lying jailer _how_ he would answer your simple question he would lie and say "yes".
Case 2b: Door 2 leads to freedom. In this case, in order to lie, the lying jailer must answer "no" to the complicated question; he would answer "yes" to the simple question. Hence again, in this case the lying jailer would give the same answer as the the truth-telling jailer and you would have enough information to reach freedom.
So to conclude: if either jailer answers "yes" then door 1 leads to freedom, and if either answers "no" then door 2 leads to freedom.
QED
(By the way, I used to be a logic prof.)
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Language pair: English; All
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Reed
October 1, 2005
# Msgs: 3
Latest: October 1, 2005
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Greetings from Hungary
Hi everybody,
I'm Ramona from Hungary. I have been learning English for 12 years and I have just started to learn Italian. I like animals and languages very much, especially Italian. I would be glad if somebody could help me to learn this nice language.
write me soon!
Bye, Ramona
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Language pair: Hungarian; English
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Ramona N.
September 19, 2005
# Msgs: 1
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A Logic Problem to Solve
Hi friends,
Below is a logic question anyone interested should read it first and can ask me for answer if she wants:
A prisoner is kept in a room with two jailers.The room has two doors, one to freedoom, and the other to a certain death. The prisoner knows this, but he does not know which door is which. He also knows that one of his jailers always tells the truth, and the other always tells lies, but he does not know which jailer is the truth-teller and which is the liar. He is allowed to ask just ONE question of one of the jailers : he may choose which jailer to ask , and he may decide what question to ask.(Both jailers know which door is which, and each knows the other's lying or truthful disposition.) What single question can the prisoner ask in order to find out for certain which door leads to freedoom?
If you have suggestions or want to know the real answer, simply contact me.
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Language pair: English; All
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Özhan
September 15, 2005
# Msgs: 3
Latest: October 1, 2005
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hi~ i want to make new friends
hi my name is jake.
i'm a korean guy. i'm studing English in Toronto Canada
Even though i stay in toronto, actually my English not so good.
but i really want to speak English well. 'cause i can make good friends as much as study Englsih.
now i start speak English a little bit
when i have a conversation with other people from different country, it's fabulous, awesome.
i can't believe that i talking with other country people and they understand me.
anybody help me? if you want to know korean maybe i can help you.
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Language pair: Korean; English
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Jake
August 7, 2005
# Msgs: 1
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Re:Thanks, Mark!
Hola Marta
Debes saber que nadie habla ninguna lengua perfectamente, aún cuándo se trata de su lengua materna. ¡No hablo inglés perfectamente de ninguna manera! Pero lo hablo muy bien, y será un placer ayudarte con eso. Creo que será muy fácil ayudarte, así que lo hablas tan excelente.
Será de buena ayuda hablar juntos por voz de vez en cuando, y me puedes encontrar en AIM, si me buscas. Pero mi nombre de usuario es silaoshi. Déjame saber si hay algún hora práctico para ti por hablar juntos. Desde mañana, regreso a trabajo, así pues puedo hablar entre las horas de 8:30p.m. y 11:00 p.m. en la tiempo de TEP (PST?). Tengo la misma hora con San Francisco y Los Angeles.
Dime que crees. ¡Espero tu repuesta!
Hasta luego,
Mark
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Language pair: Spanish; English
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Mark S.
August 4, 2005
# Msgs: 2
Latest: August 4, 2005
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Español bastante útil: Re:Re:Excellent English
¡Hola Marta!
No soy miembro de oro, y no puedo prometer hablar contigo regularmente. Pero sí puedo discutir contigo acerca de cómo he aprendido lo que sé, y puedo contestar algunas preguntas que tengas.
De todos modos, será un placer hablar contigo de vez en cuando, y ayudarte cuando tengas unas preguntas. Ojalá que pueda contar contigo también si tenga algunas preguntas yo mismo.
Y por supuesto, siempre está bien si te gustaría decirme si estoy haciendo algún error con frecuencia. Siempre hay que practicar usar los géneros correctos, y también los verbos. La mayor parte es practicar, pero será de mucha ayuda para mí tener alguien que quiere corregir mis errores—no todos, sino solo los dos o tres problemas que son los más importantes en cada carta.
Déjame saber si hay algo en que puedo ayudarte.
Bienvenido a Hogwarts!
Mark Springer
Sacramento, CA USA
Re:Excellent English Marta Catalan
Hi!
I'm trying to speak English with somebody, but I don't find anyone... I've got a good level and I can help you (I think you can help me too :) ). I'm not a gold member so I can't contact you...
Answer me soon!
Marta
(If somebody else can help me, answer me too! Thanks :) )
This is a reply to message # 55495
Language pair: Catalan; English
Category: Activities and Games
Post date: August 2, 2005
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Language pair: Catalan; English
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Mark S.
August 2, 2005
# Msgs: 2
Latest: August 4, 2005
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Re:elena 48 times
Hi Elena
I am 49 years old, living in Spain I would love some help in improving my Spanish, and I would enjoy helping you with your English.
I have a TEFL qualification, and just now I´m helping some Spanish friends with their English in exchange for help with my Spanish.
I´m not a gold member either.
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Language pair: English; Spanish
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Franny
August 1, 2005
# Msgs: 3
Latest: August 1, 2005
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