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Mirrors > Home > MPE Home > Th. List > Mathboxes > tfr3ALT | Structured version Unicode version |
Description: tfr3 6967 via well-founded recursion. (Contributed by Scott Fenton, 22-Apr-2011.) (Revised by Mario Carneiro, 26-Jun-2015.) (Proof modification is discouraged.) |
Ref | Expression |
---|---|
tfrALT.1 |
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Ref | Expression |
---|---|
tfr3ALT |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | predon 27797 |
. . . . . 6
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2 | 1 | reseq2d 5217 |
. . . . 5
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3 | 2 | fveq2d 5802 |
. . . 4
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4 | 3 | eqeq2d 2468 |
. . 3
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5 | 4 | ralbiia 2837 |
. 2
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6 | epweon 6504 |
. . . 4
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7 | epse 4810 |
. . . 4
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8 | tfrALT.1 |
. . . . 5
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9 | tfrALTlem 27886 |
. . . . 5
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10 | 8, 9 | eqtri 2483 |
. . . 4
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11 | 6, 7, 10 | wfr3 27885 |
. . 3
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12 | 11 | eqcomd 2462 |
. 2
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13 | 5, 12 | sylan2br 476 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1592 ax-4 1603 ax-5 1671 ax-6 1710 ax-7 1730 ax-8 1760 ax-9 1762 ax-10 1777 ax-11 1782 ax-12 1794 ax-13 1955 ax-ext 2432 ax-rep 4510 ax-sep 4520 ax-nul 4528 ax-pow 4577 ax-pr 4638 ax-un 6481 |
This theorem depends on definitions: df-bi 185 df-or 370 df-an 371 df-3or 966 df-3an 967 df-tru 1373 df-ex 1588 df-nf 1591 df-sb 1703 df-eu 2266 df-mo 2267 df-clab 2440 df-cleq 2446 df-clel 2449 df-nfc 2604 df-ne 2649 df-ral 2803 df-rex 2804 df-reu 2805 df-rmo 2806 df-rab 2807 df-v 3078 df-sbc 3293 df-csb 3395 df-dif 3438 df-un 3440 df-in 3442 df-ss 3449 df-pss 3451 df-nul 3745 df-if 3899 df-sn 3985 df-pr 3987 df-tp 3989 df-op 3991 df-uni 4199 df-iun 4280 df-br 4400 df-opab 4458 df-mpt 4459 df-tr 4493 df-eprel 4739 df-id 4743 df-po 4748 df-so 4749 df-fr 4786 df-se 4787 df-we 4788 df-ord 4829 df-on 4830 df-suc 4832 df-xp 4953 df-rel 4954 df-cnv 4955 df-co 4956 df-dm 4957 df-rn 4958 df-res 4959 df-ima 4960 df-iota 5488 df-fun 5527 df-fn 5528 df-f 5529 df-f1 5530 df-fo 5531 df-f1o 5532 df-fv 5533 df-recs 6941 df-pred 27768 df-wrecs 27860 |
This theorem is referenced by: (None) |
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