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Mirrors > Home > MPE Home > Th. List > axdc3lem3 | Structured version Visualization version Unicode version |
Description: Simple substitution lemma for axdc3 9276. (Contributed by Mario Carneiro, 27-Jan-2013.) |
Ref | Expression |
---|---|
axdc3lem3.1 |
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axdc3lem3.2 |
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axdc3lem3.3 |
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Ref | Expression |
---|---|
axdc3lem3 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | axdc3lem3.2 |
. . 3
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2 | 1 | eleq2i 2693 |
. 2
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3 | axdc3lem3.3 |
. . 3
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4 | feq1 6026 |
. . . . 5
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5 | fveq1 6190 |
. . . . . 6
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6 | 5 | eqeq1d 2624 |
. . . . 5
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7 | fveq1 6190 |
. . . . . . 7
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8 | fveq1 6190 |
. . . . . . . 8
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9 | 8 | fveq2d 6195 |
. . . . . . 7
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10 | 7, 9 | eleq12d 2695 |
. . . . . 6
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11 | 10 | ralbidv 2986 |
. . . . 5
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12 | 4, 6, 11 | 3anbi123d 1399 |
. . . 4
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13 | 12 | rexbidv 3052 |
. . 3
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14 | 3, 13 | elab 3350 |
. 2
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15 | suceq 5790 |
. . . . 5
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16 | 15 | feq2d 6031 |
. . . 4
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17 | raleq 3138 |
. . . 4
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18 | 16, 17 | 3anbi13d 1401 |
. . 3
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19 | 18 | cbvrexv 3172 |
. 2
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20 | 2, 14, 19 | 3bitri 286 |
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 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-fv 5896 |
This theorem is referenced by: axdc3lem4 9275 |
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