Definition df-s7 13598

Description: Define the length 7 word constructor. (Contributed by Mario Carneiro, 26-Feb-2016.)

Assertion

Ref	Expression
df-s7	|- <" A B C D E F G "> = ( <" A B C D E F "> ++ <" G "> )

Detailed syntax breakdown of Definition df-s7

Step	Hyp	Ref	Expression
1		cA	. . 3 class A
2		cB	. . 3 class B
3		cC	. . 3 class C
4		cD	. . 3 class D
5		cE	. . 3 class E
6		cF	. . 3 class F
7		cG	. . 3 class G
8	1, 2, 3, 4, 5, 6, 7	cs7 13591	. 2 class <" A B C D E F G ">
9	1, 2, 3, 4, 5, 6	cs6 13590	. . 3 class <" A B C D E F ">
10	7	cs1 13294	. . 3 class <" G ">
11		cconcat 13293	. . 3 class ++
12	9, 10, 11	co 6650	. 2 class ( <" A B C D E F "> ++ <" G "> )
13	8, 12	wceq 1483	1 wff <" A B C D E F G "> = ( <" A B C D E F "> ++ <" G "> )

This definition is referenced by:  s7eqd  13613  s7cld  13621  s7cli  13630  s7len  13647  s1s6  13672  s1s7  13673  s4s3  13676  s5s2  13680  konigsberglem1  27114  konigsberglem2  27115  konigsberglem3  27116