Theorem ax16nfALT 2065

Description: Alternate proof of ax16nf 1944, shorter but requiring ax-11 1842. (Contributed by Mario Carneiro, 7-Oct-2016.) (New usage is discouraged.) (Proof modification is discouraged.)

Assertion

Ref	Expression
ax16nfALT

Distinct variable group:   ,

Proof of Theorem ax16nfALT

Step	Hyp	Ref	Expression
1		nfae 2056	. 2
2		axc16g 1940	. 2
3	1, 2	nfd 1878	1

Syntax hints:  ->wi 4  A.wal 1393  F/wnf 1616

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-6 1747  ax-7 1790  ax-10 1837  ax-11 1842  ax-12 1854  ax-13 1999

This theorem depends on definitions:  df-bi 185  df-an 371  df-ex 1613  df-nf 1617