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Theorem el3v3 3440
Description: If a proposition is implied by 𝑧 ∈ V (which is true, see vex 3435) and two other antecedents, then it is implied by these other antecedents. (Contributed by Peter Mazsa, 16-Oct-2020.)
Hypothesis
Ref Expression
el3v3.1 ((𝜑𝜓𝑧 ∈ V) → 𝜃)
Assertion
Ref Expression
el3v3 ((𝜑𝜓) → 𝜃)

Proof of Theorem el3v3
StepHypRef Expression
1 vex 3435 . 2 𝑧 ∈ V
2 el3v3.1 . 2 ((𝜑𝜓𝑧 ∈ V) → 𝜃)
31, 2mp3an3 1458 1 ((𝜑𝜓) → 𝜃)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396  w3a 1092  wcel 2119  Vcvv 3431
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-ext 2711
This theorem depends on definitions:  df-bi 208  df-an 397  df-3an 1094  df-tru 1550  df-ex 1787  df-sb 2074  df-clab 2718  df-cleq 2731  df-clel 2814  df-v 3433
This theorem is referenced by:  el3v13  38600  el3v23  38601  dfgrlic2  48499  dfgrlic3  48501
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