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Theorem intnan 880

Description: Introduction of conjunct inside of a contradiction. (Contributed by NM, 16-Sep-1993.)

**Hypothesis**
Ref	Expression
intnan.1

**Assertion**
Ref	Expression
intnan	$/\$

**Proof of Theorem intnan**
Step	Hyp	Ref	Expression
1		intnan.1	. 2
2		simpr 447	. 2 $/\$
3	1, 2	mto 167	1 $/\$

Colors of variables: wff setvar class

Syntax hints:

wn 3 $/\$ wa 358

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 177 df-an 360

This theorem is referenced by: bianfi 891 truanfal 1337 indifdir 3512 eqtfinrelk 4487 co01 5094 imadif 5172 xpnedisj 5514 2p1e3c 6157 nnc3n3p1 6279