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15:23:08 05/15/26 FriLogin ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 12345[6]78910 ]
Subject: Re: "優惠"儒家, 其實是在踐踏儒家


Author:
OTL
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Date Posted: 23:26:47 03/14/07 Wed
In reply to: 蔡俊浩 's message, ""優惠"儒家, 其實是在踐踏儒家" on 01:39:41 03/13/07 Tue

>非a 即b
>來表達
>a 或者 b. 的.

>即是說, 邏輯上, 他們精簡了, 用少了一個notion.

1.a 或者 b (a or b)
E=a or b
E=[ab',a'b,ab,a'b'] (a'代表not a)

2.非a 即b (a' then b)
好明顯係if...then... 啦大佬 =/

a or b,例如 a true b true 咁 a or b is true
而"非a 即b", a false 時 b 一定要係true
所以"非a 即b"同"a or b" 係完全唔同

但係如果你define "非a 即b"="a or b"
咁就己經係一個新0既notion
咁就唔係少用一個notion啦

>(懂電腦的人話比我知一個電腦用兩個notion就可以包括晒所有notion.)
其實電腦用NAND一個notion就足夠做哂所有logic operation

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Replies:
[> [> Subject: 可以講解nand 嗎?


Author:
蔡俊浩
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Date Posted: 13:47:04 03/18/07 Sun

可以講一下nand是一個甚麼樣的notion, 可以一個notion就能推出所有其他的notion
[> [> [> Subject: Re: 可以講解nand 嗎?


Author:
應該同pure maths果d差唔多
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Date Posted: 15:24:18 03/18/07 Sun

>可以講一下nand是一個甚麼樣的notion,
>可以一個notion就能推出所有其他的notion
電腦program logic 符號,
應該同pure maths果d差唔多
[> [> [> Subject: Re: 可以講解nand 嗎?


Author:
T_T
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Date Posted: 17:54:37 03/18/07 Sun

So simple, nothing special.



[> [> [> [> Subject: Re: 可以講解nand 嗎?


Author:
蔡俊浩
[ Edit | View ]

Date Posted: 01:27:55 03/19/07 Mon

個表冇if...then, 同埋 or, 同埋 not 呢幾個operators 既?

無not, 同 if... then..., 係唔係因為 if a, then not b?, 咁or呢?


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