Theorem _hyp_fomp ≪ | index | src | ≫

fomp的假设无关形式（不可引用）

theorem _hyp_fomp {x: set} (G A B: wff x):
  $ \nf x G $ >
  $ G \imp \fo x A \imp B $ >
  $ G \imp A $ >
  $ G \imp B $;

Step	Hyp	Ref	Expression
1		hyp h1	G \imp \fo x A \imp B
2		hyp g	\nf x G
3		hyp h2	G \imp A
4	2, 3	_hyp_intro_fo	G \imp \fo x A
5	1, 4	_hyp_mp	G \imp B

Axiom use

Logic (ax_mp, ax_1, ax_2, ax_3, ax_gen, ax_4, ax_5, ax_6, ax_7, ax_12)