intnan - Intuitionistic Logic Explorer

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Theorem intnan 934

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 110	. 2 $/\$
3	1, 2	mto 666	1 $/\$

Colors of variables: wff set class

Syntax hints:

wn 3 $/\$ wa 104

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia2 107 ax-in1 617 ax-in2 618

This theorem is referenced by: bianfi 953 axnul 4209 fodjum 7324 nninfwlporlemd 7350 iftrueb01 7419 pw1if 7421 2omotaplemap 7454 xrltnr 9987 nltmnf 9996 3lcm2e6woprm 12624 6lcm4e12 12625 subctctexmid 16453