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Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > elbigodm | Structured version Visualization version GIF version |
Description: The domain of a function of order G(x) is a subset of the reals. (Contributed by AV, 18-May-2020.) |
Ref | Expression |
---|---|
elbigodm | β’ (πΉ β (ΞβπΊ) β dom πΉ β β) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elbigo 46873 | . 2 β’ (πΉ β (ΞβπΊ) β (πΉ β (β βpm β) β§ πΊ β (β βpm β) β§ βπ₯ β β βπ β β βπ¦ β (dom πΉ β© (π₯[,)+β))(πΉβπ¦) β€ (π Β· (πΊβπ¦)))) | |
2 | reex 11182 | . . . . 5 β’ β β V | |
3 | 2, 2 | elpm2 8850 | . . . 4 β’ (πΉ β (β βpm β) β (πΉ:dom πΉβΆβ β§ dom πΉ β β)) |
4 | 3 | simprbi 497 | . . 3 β’ (πΉ β (β βpm β) β dom πΉ β β) |
5 | 4 | 3ad2ant1 1133 | . 2 β’ ((πΉ β (β βpm β) β§ πΊ β (β βpm β) β§ βπ₯ β β βπ β β βπ¦ β (dom πΉ β© (π₯[,)+β))(πΉβπ¦) β€ (π Β· (πΊβπ¦))) β dom πΉ β β) |
6 | 1, 5 | sylbi 216 | 1 β’ (πΉ β (ΞβπΊ) β dom πΉ β β) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β§ w3a 1087 β wcel 2106 βwral 3060 βwrex 3069 β© cin 3942 β wss 3943 class class class wbr 5140 dom cdm 5668 βΆwf 6527 βcfv 6531 (class class class)co 7392 βpm cpm 8803 βcr 11090 Β· cmul 11096 +βcpnf 11226 β€ cle 11230 [,)cico 13307 Ξcbigo 46869 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5291 ax-nul 5298 ax-pow 5355 ax-pr 5419 ax-un 7707 ax-cnex 11147 ax-resscn 11148 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-rab 3432 df-v 3474 df-sbc 3773 df-dif 3946 df-un 3948 df-in 3950 df-ss 3960 df-nul 4318 df-if 4522 df-pw 4597 df-sn 4622 df-pr 4624 df-op 4628 df-uni 4901 df-br 5141 df-opab 5203 df-mpt 5224 df-id 5566 df-xp 5674 df-rel 5675 df-cnv 5676 df-co 5677 df-dm 5678 df-rn 5679 df-res 5680 df-ima 5681 df-iota 6483 df-fun 6533 df-fn 6534 df-f 6535 df-fv 6539 df-ov 7395 df-oprab 7396 df-mpo 7397 df-pm 8805 df-bigo 46870 |
This theorem is referenced by: (None) |
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