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Theorem nic-isw1 1605

Description: Inference version of nic-swap 1604. (Contributed by Jeff Hoffman, 17-Nov-2007.) (Proof modification is discouraged.) (New usage is discouraged.)

**Hypothesis**
Ref	Expression
nic-isw1.1	$-/\$

**Assertion**
Ref	Expression
nic-isw1	$-/\$

**Proof of Theorem nic-isw1**
Step	Hyp	Ref	Expression
1		nic-isw1.1	. 2 $-/\$
2		nic-swap 1604	. 2 $-/\$ $-/\$ $-/\$ $-/\$ $-/\$
3	1, 2	nic-mp 1596	1 $-/\$

Colors of variables: wff setvar class

Syntax hints: $-/\$ wnan 1447

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8

This theorem depends on definitions: df-bi 197 df-an 386 df-nan 1448

This theorem is referenced by: nic-isw2 1606 nic-iimp1 1607 nic-iimp2 1608 nic-idel 1609 nic-ich 1610 nic-luk2 1617

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