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Theorem setinds2f 35404
Description: E induction schema, using implicit substitution. (Contributed by Scott Fenton, 10-Mar-2011.) (Revised by Mario Carneiro, 11-Dec-2016.)
Hypotheses
Ref Expression
setinds2f.1 𝑥𝜓
setinds2f.2 (𝑥 = 𝑦 → (𝜑𝜓))
setinds2f.3 (∀𝑦𝑥 𝜓𝜑)
Assertion
Ref Expression
setinds2f 𝜑
Distinct variable groups:   𝑥,𝑦   𝜑,𝑦
Allowed substitution hints:   𝜑(𝑥)   𝜓(𝑥,𝑦)

Proof of Theorem setinds2f
StepHypRef Expression
1 sbsbc 3772 . . . . 5 ([𝑦 / 𝑥]𝜑[𝑦 / 𝑥]𝜑)
2 setinds2f.1 . . . . . 6 𝑥𝜓
3 setinds2f.2 . . . . . 6 (𝑥 = 𝑦 → (𝜑𝜓))
42, 3sbiev 2303 . . . . 5 ([𝑦 / 𝑥]𝜑𝜓)
51, 4bitr3i 276 . . . 4 ([𝑦 / 𝑥]𝜑𝜓)
65ralbii 3083 . . 3 (∀𝑦𝑥 [𝑦 / 𝑥]𝜑 ↔ ∀𝑦𝑥 𝜓)
7 setinds2f.3 . . 3 (∀𝑦𝑥 𝜓𝜑)
86, 7sylbi 216 . 2 (∀𝑦𝑥 [𝑦 / 𝑥]𝜑𝜑)
98setinds 35403 1 𝜑
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wnf 1777  [wsb 2059  wral 3051  [wsbc 3768
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-10 2129  ax-11 2146  ax-12 2166  ax-ext 2696  ax-rep 5278  ax-sep 5292  ax-nul 5299  ax-pr 5421  ax-un 7736  ax-reg 9613  ax-inf2 9662
This theorem depends on definitions:  df-bi 206  df-an 395  df-or 846  df-3or 1085  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-nf 1778  df-sb 2060  df-mo 2528  df-eu 2557  df-clab 2703  df-cleq 2717  df-clel 2802  df-nfc 2877  df-ne 2931  df-ral 3052  df-rex 3061  df-reu 3365  df-rab 3420  df-v 3465  df-sbc 3769  df-csb 3885  df-dif 3942  df-un 3944  df-in 3946  df-ss 3956  df-pss 3958  df-nul 4317  df-if 4523  df-pw 4598  df-sn 4623  df-pr 4625  df-op 4629  df-uni 4902  df-iun 4991  df-br 5142  df-opab 5204  df-mpt 5225  df-tr 5259  df-id 5568  df-eprel 5574  df-po 5582  df-so 5583  df-fr 5625  df-we 5627  df-xp 5676  df-rel 5677  df-cnv 5678  df-co 5679  df-dm 5680  df-rn 5681  df-res 5682  df-ima 5683  df-pred 6298  df-ord 6365  df-on 6366  df-lim 6367  df-suc 6368  df-iota 6493  df-fun 6543  df-fn 6544  df-f 6545  df-f1 6546  df-fo 6547  df-f1o 6548  df-fv 6549  df-ov 7417  df-om 7867  df-2nd 7990  df-frecs 8283  df-wrecs 8314  df-recs 8388  df-rdg 8427
This theorem is referenced by:  setinds2  35405
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