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Theorem mpan2d 428
Description: A deduction based on modus ponens. (Contributed by NM, 12-Dec-2004.)
Hypotheses
Ref Expression
mpan2d.1 (𝜑𝜒)
mpan2d.2 (𝜑 → ((𝜓𝜒) → 𝜃))
Assertion
Ref Expression
mpan2d (𝜑 → (𝜓𝜃))

Proof of Theorem mpan2d
StepHypRef Expression
1 mpan2d.1 . 2 (𝜑𝜒)
2 mpan2d.2 . . 3 (𝜑 → ((𝜓𝜒) → 𝜃))
32expd 258 . 2 (𝜑 → (𝜓 → (𝜒𝜃)))
41, 3mpid 42 1 (𝜑 → (𝜓𝜃))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia3 108
This theorem is referenced by:  mpand  429  mpan2i  431  ralxfrd  4588  rexxfrd  4589  elunirn  5945  onunsnss  7190  xpfi  7205  snon0  7215  genprndl  7852  genprndu  7853  addlsub  8659  letrp1  9139  peano2uz2  9703  uzind  9707  xrre  10172  xrre2  10173  flqge  10666  monoord  10871  facwordi  11127  facavg  11133  dvdsmultr1  12542  ltoddhalfle  12604  dvdsgcdb  12734  dfgcd2  12735  coprmgcdb  12810  coprmdvds2  12815  exprmfct  12860  prmdvdsfz  12861  prmfac1  12874  rpexp  12875  eulerthlemh  12953  pcpremul  13016  pcdvdsb  13043  pcprmpw2  13056  pockthlem  13079  4sqlem11  13124  lgsne0  16023  gausslemma2dlem1a  16043  gausslemma2dlem2  16047  lgseisenlem1  16055  lgseisenlem2  16056  lgsquadlem1  16062  lgsquadlem2  16063  lgsquadlem3  16064  lgsquad2lem1  16066  lgsquad2lem2  16067
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