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Definition df-s7 11817
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 "> concat  <" G "> )

Detailed syntax breakdown of Definition df-s7
StepHypRef 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
81, 2, 3, 4, 5, 6, 7cs7 11810 . 2  class  <" A B C D E F G ">
91, 2, 3, 4, 5, 6cs6 11809 . . 3  class  <" A B C D E F ">
107cs1 11719 . . 3  class  <" G ">
11 cconcat 11718 . . 3  class concat
129, 10, 11co 6081 . 2  class  ( <" A B C D E F "> concat 
<" G "> )
138, 12wceq 1652 1  wff  <" A B C D E F G ">  =  ( <" A B C D E F "> concat  <" G "> )
Colors of variables: wff set class
This definition is referenced by:  s7eqd  11831  s7cld  11838  s7cli  11847  s7len  11859  s1s6  11874  s1s7  11875  s4s3  11878  konigsberg  21709
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