Theorem idiALT 31455

Description: Placeholder for idi 2. Though unnecessary, this theorem is sometimes used in proofs in this mathbox for pedagogical purposes. (Contributed by Alan Sare, 31-Dec-2011.) (Proof modification is discouraged.) (New usage is discouraged.)

Hypothesis

Ref	Expression
idiALT.1	|- ph

Assertion

Ref	Expression
idiALT	|- ph

Proof of Theorem idiALT

Step	Hyp	Ref	Expression
1		idiALT.1	1 |- ph

This theorem is referenced by:  ax6e2nd  31569  trsspwALT2  31855  sspwtrALT  31858  suctrALT  31864  sstrALT2  31873  suctrALT3  31962  sspwimpALT  31963  ax6e2ndALT  31968  ax6e2ndeqALT  31969  isosctrlem1ALT  31972  iunconlem2  31973  sineq0ALT  31975