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Mirrors > Home > NFE Home > Th. List > vfinspeqtncv | Unicode version |
Description: If the universe is finite, then Spfin is equal to its T raisings and the cardinality of the universe. Theorem X.1.61 of [Rosser] p. 536. (Contributed by SF, 29-Jan-2015.) |
Ref | Expression |
---|---|
vfinspeqtncv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vfinspss 4552 |
. 2
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2 | vfinspclt 4553 |
. . . . . . 7
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3 | eleq1 2413 |
. . . . . . . . 9
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4 | 3 | biimprd 214 |
. . . . . . . 8
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5 | 4 | com12 27 |
. . . . . . 7
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6 | 2, 5 | syl 15 |
. . . . . 6
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7 | 6 | rexlimdva 2739 |
. . . . 5
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8 | 7 | abssdv 3341 |
. . . 4
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9 | ncvspfin 4539 |
. . . . 5
![]() ![]() ![]() | |
10 | ncfinex 4473 |
. . . . . 6
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11 | 10 | snss 3839 |
. . . . 5
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12 | 9, 11 | mpbi 199 |
. . . 4
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13 | 8, 12 | jctir 524 |
. . 3
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14 | unss 3438 |
. . 3
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15 | 13, 14 | sylib 188 |
. 2
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16 | 1, 15 | eqssd 3290 |
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 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-13 1712 ax-14 1714 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4079 ax-xp 4080 ax-cnv 4081 ax-1c 4082 ax-sset 4083 ax-si 4084 ax-ins2 4085 ax-ins3 4086 ax-typlower 4087 ax-sn 4088 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3or 935 df-3an 936 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-eu 2208 df-mo 2209 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-ne 2519 df-ral 2620 df-rex 2621 df-reu 2622 df-rmo 2623 df-rab 2624 df-v 2862 df-sbc 3048 df-nin 3212 df-compl 3213 df-in 3214 df-un 3215 df-dif 3216 df-symdif 3217 df-ss 3260 df-pss 3262 df-nul 3552 df-if 3664 df-pw 3725 df-sn 3742 df-pr 3743 df-uni 3893 df-int 3928 df-opk 4059 df-1c 4137 df-pw1 4138 df-uni1 4139 df-xpk 4186 df-cnvk 4187 df-ins2k 4188 df-ins3k 4189 df-imak 4190 df-cok 4191 df-p6 4192 df-sik 4193 df-ssetk 4194 df-imagek 4195 df-idk 4196 df-iota 4340 df-0c 4378 df-addc 4379 df-nnc 4380 df-fin 4381 df-lefin 4441 df-ltfin 4442 df-ncfin 4443 df-tfin 4444 df-sfin 4447 df-spfin 4448 |
This theorem is referenced by: vfinncsp 4555 |
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