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Mirrors > Home > MPE Home > Th. List > fsnunf | Structured version Visualization version Unicode version |
Description: Adjoining a point to a function gives a function. (Contributed by Stefan O'Rear, 28-Feb-2015.) |
Ref | Expression |
---|---|
fsnunf |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1061 |
. . 3
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2 | simp2l 1087 |
. . . . 5
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3 | simp3 1063 |
. . . . 5
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4 | f1osng 6177 |
. . . . 5
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5 | 2, 3, 4 | syl2anc 693 |
. . . 4
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6 | f1of 6137 |
. . . 4
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7 | 5, 6 | syl 17 |
. . 3
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8 | simp2r 1088 |
. . . 4
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9 | disjsn 4246 |
. . . 4
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10 | 8, 9 | sylibr 224 |
. . 3
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11 | fun 6066 |
. . 3
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12 | 1, 7, 10, 11 | syl21anc 1325 |
. 2
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13 | snssi 4339 |
. . . . 5
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14 | 13 | 3ad2ant3 1084 |
. . . 4
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15 | ssequn2 3786 |
. . . 4
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16 | 14, 15 | sylib 208 |
. . 3
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17 | 16 | feq3d 6032 |
. 2
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18 | 12, 17 | mpbid 222 |
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 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
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-eu 2474 df-mo 2475 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-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 |
This theorem is referenced by: fsnunf2 6452 fnchoice 39188 nnsum4primeseven 41688 nnsum4primesevenALTV 41689 |
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