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Mathbox for Jim Kingdon |
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Mirrors > Home > ILE Home > Th. List > Mathboxes > nnti | Unicode version |
Description: Ordering on a natural number generates a tight apartness. (Contributed by Jim Kingdon, 7-Aug-2022.) |
Ref | Expression |
---|---|
nnti.a |
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Ref | Expression |
---|---|
nnti |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simprl 529 |
. . . 4
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2 | nnti.a |
. . . . 5
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3 | 2 | adantr 276 |
. . . 4
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4 | elnn 4604 |
. . . 4
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5 | 1, 3, 4 | syl2anc 411 |
. . 3
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6 | simprr 531 |
. . . 4
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7 | elnn 4604 |
. . . 4
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8 | 6, 3, 7 | syl2anc 411 |
. . 3
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9 | nntri3 6494 |
. . 3
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10 | 5, 8, 9 | syl2anc 411 |
. 2
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11 | epel 4291 |
. . . 4
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12 | 11 | notbii 668 |
. . 3
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13 | epel 4291 |
. . . 4
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14 | 13 | notbii 668 |
. . 3
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15 | 12, 14 | anbi12i 460 |
. 2
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16 | 10, 15 | bitr4di 198 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4120 ax-nul 4128 ax-pow 4173 ax-pr 4208 ax-un 4432 ax-setind 4535 ax-iinf 4586 |
This theorem depends on definitions: df-bi 117 df-3or 979 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-ral 2460 df-rex 2461 df-v 2739 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-nul 3423 df-pw 3577 df-sn 3598 df-pr 3599 df-op 3601 df-uni 3810 df-int 3845 df-br 4003 df-opab 4064 df-tr 4101 df-eprel 4288 df-iord 4365 df-on 4367 df-suc 4370 df-iom 4589 |
This theorem is referenced by: (None) |
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