({ Home Grammar Facts Reasoning Knowledge base Software Download })

({ Clicking on a green or brown colored Method displays or hides the Application of that Method, and also displays or hides another Method or the Reason in that Paragraph. })

(^ ThingsAndFeatures ^)

[- Amalgamation -]

({ The thing whose features are all the features of features of +a will be represented by +am/ +a. })

+Df +Am [a [b = +ft// +b +am/ +a ]c ( +ft// +b +c +ft// +c +a
+Am1 +Pr ) - +Am = +ft// +b +am/ +a ]c ( +ft// +b +c +ft// +c +a
+Am2 +Pr ) - +Am = +ft// +b +am/ +a ]e ( +ft// +b +e +ft// +e +a
+Am3 +Pr ) - +Am = +ft// +b +am/ +a ]d ( +ft// +b +d +ft// +d +a

({ The relation of being the same is transmitted for amalgamations. })

+Am4 +Pr ) - ( +Am +sm// +a +b +sm// +am/ +a +am/ +b
+Am5 +Pr ) - +Am ) - ( +ft// +c +b +ft// +b +a +ft// +c +am/ +a

[- Union -]

+Df +un// +a +b +am/ +th// +a +b

({ The features of +un// +a +b are the combined features of +a and +b. })

+Un1 +Pr ) - +Th ) - +Am ) - ( +ft/ +a +ft/ +b = +ft// +c +un// +a +b ) +ft// +c +a +ft// +c +b

({ +un// +a +b is symmetrical. })

+Un2 +Pr ) - ( +Th ( +Am ( +ft/ +a +ft/ +b +sm// +un// +a +b +un// +b +a
+Un3 +Pr ) - ( +Th ( +Am +ft/ +a +sm// +un// +a +a +a

({ The proof of the following Fact about amalgamations uses +Un3. })

+Am6 +Pr ) - ( +Th ( +Am +ft/ +a +sm// +am/ +th/ +a +a

({ The relation of being the same is transmitted for unions. })

+Un4 +Pr ) - ( +Th ( +Am ( +ft/ +a +ft/ +b ) - +sm// +a +g +sm// +un// +a +b +un// +g +b
+Un5 +Pr ) - ( +Th ( +Am ( +ft/ +a +ft/ +b ) - +sm// +a +g +sm// +un// +b +a +un// +b +g

[- Division -]

({ For any thing +a, the thing whose features are all the things that have exactly one feature, and are such that their one and only feature is a feature of +a, will be called the division of +a, and represented by +dv/ +a. })

+Df +Dv [a [b = +ft// +b +dv/ +a ]c ( +ft// +c +a +sm// +b +th/ +c
+Dv1 +Pr ) - +Dv = +ft// +b +dv/ +a ]c ( +ft// +c +a +sm// +b +th/ +c

({ The Adverb can be changed as in the following example. })

+Dv2 +Pr ) - +Dv = +ft// +b +dv/ +a ]g ( +ft// +g +a +sm// +b +th/ +g
+Dv3 +Pr ) - +Dv ) - +ft// +g +a +ft// +th/ +g +dv/ +a

({ If +a is a feature, then +th/ +a is a feature. })

+Th18 +Pr ) - ( +Th +Dv ) - +ft/ +a +ft/ +th/ +a
+Th19 +Pr ) - ( +Th ( +Am ( +Dv ( +ft/ +a +ft/ +b +sm// +un// +th/ +a +th/ +b +th// +a +b
+Th20 +Pr ) - ( +Nf ( +Th ( +Dv ( +ft/ +b +ft/ +c - +sm// +th// +0 +th/ +b +th/ +c

(_ CrossUnion _)

({ The English and Verish text on this website is licensed for use under the Free Software Foundation Free Documentation License, and the software is licensed for use under the Free Software Foundation General Public License. })

({ Page last updated 25 May 2018. Copyright (c) Chris Austin 1997 - 2018. Privacy policy })