Database REAL AND COMPLEX NUMBERS Words over a set Repeated symbol words df-reps  
				
		 
		
			
		 
		Description:   Definition to construct a word consisting of one repeated symbol, often
       called "repeated symbol word" for short in the following.  (Contributed by Alexander van der Vekens , 4-Nov-2018) 
		
			
				
					Ref 
					Expression 
				 
				
					Assertion 
					df-reps   ⊢   repeatS  =    s  ∈  V  ,  n  ∈    ℕ   0    ⟼    x  ∈   0   ..^  n ⟼  s             
				 
			
		 
		
				Detailed syntax breakdown 
				
					
						Step 
						Hyp 
						Ref 
						Expression 
					 
						
							0 
								
							 
							creps  class  repeatS    
						
							1 
								
							 
							vs  setvar  s    
						
							2 
								
							 
							cvv  class  V    
						
							3 
								
							 
							vn  setvar  n    
						
							4 
								
							 
							cn0  class    ℕ   0      
						
							5 
								
							 
							vx  setvar  x    
						
							6 
								
							 
							cc0  class   0     
						
							7 
								
							 
							cfzo  class  ..^    
						
							8 
								3 
							 
							cv  setvar  n    
						
							9 
								6  8  7 
							 
							co  class   0   ..^  n    
						
							10 
								1 
							 
							cv  setvar  s    
						
							11 
								5  9  10 
							 
							cmpt  class    x  ∈   0   ..^  n ⟼  s       
						
							12 
								1  3  2  4  11 
							 
							cmpo  class    s  ∈  V  ,  n  ∈    ℕ   0    ⟼    x  ∈   0   ..^  n ⟼  s          
						
							13 
								0  12 
							 
							wceq  wff   repeatS  =    s  ∈  V  ,  n  ∈    ℕ   0    ⟼    x  ∈   0   ..^  n ⟼  s