Theorem hvaddid2i 27886

Description: Addition with the zero vector. (Contributed by NM, 18-Aug-1999.) (New usage is discouraged.)

Hypothesis

Ref	Expression
hvaddid2.1	|- A e. ~H

Assertion

Ref	Expression
hvaddid2i	|- ( 0h +h A ) = A

Proof of Theorem hvaddid2i

Step	Hyp	Ref	Expression
1		hvaddid2.1	. 2 |- A e. ~H
2		hvaddid2 27880	. 2 |- ( A e. ~H -> ( 0h +h A ) = A )
3	1, 2	ax-mp 5	1 |- ( 0h +h A ) = A

Syntax hints:   = wceq 1483   e. wcel 1990  (class class class)co 6650   ~Hchil 27776   +h cva 27777   0hc0v 27781

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-ext 2602  ax-hvcom 27858  ax-hv0cl 27860  ax-hvaddid 27861

This theorem depends on definitions:  df-bi 197  df-an 386  df-ex 1705  df-cleq 2615

This theorem is referenced by:  hvsubeq0i  27920  hvaddcani  27922  hsn0elch  28105  hhssnv  28121  shscli  28176