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Definition df-s5 12943
Description: Define the length 5 word constructor. (Contributed by Mario Carneiro, 26-Feb-2016.)
Assertion
Ref Expression
df-s5  |-  <" A B C D E ">  =  ( <" A B C D "> ++  <" E "> )

Detailed syntax breakdown of Definition df-s5
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
61, 2, 3, 4, 5cs5 12936 . 2  class  <" A B C D E ">
71, 2, 3, 4cs4 12935 . . 3  class  <" A B C D ">
85cs1 12657 . . 3  class  <" E ">
9 cconcat 12656 . . 3  class ++
107, 8, 9co 6303 . 2  class  ( <" A B C D "> ++  <" E "> )
116, 10wceq 1438 1  wff  <" A B C D E ">  =  ( <" A B C D "> ++  <" E "> )
Colors of variables: wff setvar class
This definition is referenced by:  s5eqd  12957  s5cld  12964  s5cli  12973  s5len  12989  s1s4  13004  s1s5  13005  s4s2  13009  konigsberg  25707
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