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Theorem el3v1 38205
Description: New way (elv 3483, and the theorems beginning with "el2v" or "el3v") to shorten some proofs. (Contributed by Peter Mazsa, 16-Oct-2020.)
Hypothesis
Ref Expression
el3v1.1 ((𝑥 ∈ V ∧ 𝜓𝜒) → 𝜃)
Assertion
Ref Expression
el3v1 ((𝜓𝜒) → 𝜃)

Proof of Theorem el3v1
StepHypRef Expression
1 vex 3482 . 2 𝑥 ∈ V
2 el3v1.1 . 2 ((𝑥 ∈ V ∧ 𝜓𝜒) → 𝜃)
31, 2mp3an1 1447 1 ((𝜓𝜒) → 𝜃)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1086  wcel 2106  Vcvv 3478
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-ext 2706
This theorem depends on definitions:  df-bi 207  df-an 396  df-3an 1088  df-tru 1540  df-ex 1777  df-sb 2063  df-clab 2713  df-cleq 2727  df-clel 2814  df-v 3480
This theorem is referenced by:  el3v12  38207  br1cossxrnres  38430
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