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Theorem axc4i 2356
Description: Inference version of axc4 2355. (Contributed by NM, 3-Jan-1993.)
Hypothesis
Ref Expression
axc4i.1 (∀𝑥𝜑 → 𝜓)
Assertion
Ref Expression
axc4i (∀𝑥𝜑 → ∀𝑥𝜓)

Proof of Theorem axc4i
StepHypRef Expression
1 nfa1 2191 . 2 Ⅎ𝑥∀𝑥𝜑
2 axc4i.1 . 2 (∀𝑥𝜑 → 𝜓)
31, 2alrimi 2253 1 (∀𝑥𝜑 → ∀𝑥𝜓)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4  ∀wal 1568
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-10 2180  ax-12 2216
This proof depends on definitions:  df-bi 210  df-or 862  df-ex 1813  df-nf 1817
This theorem is used by:  hbae  2463  hbsb2  2514  hbsb2a  2516  hbsb2e  2518  reu6  3687  ralidm  4476  axunndlem1  10719  axacndlem3  10733  axacndlem5  10735  axacnd  10736  reu6f  35820  bj-nfs1t  37917  bj-hbs1  37939  bj-hbsb2av  37941  bj-hbaeb2  37945  wl-hbae1  38719  frege93  45217  spALT  45462  pm11.57  45634  pm11.59  45636  axc5c4c711toc7  45649  axc11next  45651  hbalg  45798  ax6e2eq  45800  ax6e2eqVD  46149  ichnfimlem  48818
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