Database BASIC STRUCTURES Extensible structures Definition of the structure product df-pws  
				
		 
		
			
		 
		Description:   Define a structure power, which is just a structure product where all
       the factors are the same.  (Contributed by Mario Carneiro , 11-Jan-2015) 
		
			
				
					Ref 
					Expression 
				 
				
					Assertion 
					df-pws ⊢    ↑s 𝑟   ∈  V ,  𝑖   ∈  V  ↦  ( ( Scalar ‘ 𝑟  ) X s 𝑖   ×  { 𝑟  } ) ) )  
			
		 
		
				Detailed syntax breakdown 
				
					
						Step 
						Hyp 
						Ref 
						Expression 
					 
						
							0 
								
							 
							cpws ⊢   ↑s  
						
							1 
								
							 
							vr ⊢  𝑟   
						
							2 
								
							 
							cvv ⊢  V  
						
							3 
								
							 
							vi ⊢  𝑖   
						
							4 
								
							 
							csca ⊢  Scalar  
						
							5 
								1 
							 
							cv ⊢  𝑟   
						
							6 
								5  4 
							 
							cfv ⊢  ( Scalar ‘ 𝑟  )  
						
							7 
								
							 
							cprds ⊢  X s  
						
							8 
								3 
							 
							cv ⊢  𝑖   
						
							9 
								5 
							 
							csn ⊢  { 𝑟  }  
						
							10 
								8  9 
							 
							cxp ⊢  ( 𝑖   ×  { 𝑟  } )  
						
							11 
								6  10  7 
							 
							co ⊢  ( ( Scalar ‘ 𝑟  ) X s 𝑖   ×  { 𝑟  } ) )  
						
							12 
								1  3  2  2  11 
							 
							cmpo ⊢  ( 𝑟   ∈  V ,  𝑖   ∈  V  ↦  ( ( Scalar ‘ 𝑟  ) X s 𝑖   ×  { 𝑟  } ) ) )  
						
							13 
								0  12 
							 
							wceq ⊢   ↑s 𝑟   ∈  V ,  𝑖   ∈  V  ↦  ( ( Scalar ‘ 𝑟  ) X s 𝑖   ×  { 𝑟  } ) ) )