cdlemfnid - Mathbox for Norm Megill

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Theorem cdlemfnid 40546

Description: cdlemf 40545 with additional constraint of non-identity. (Contributed by NM, 20-Jun-2013.)

**Hypotheses**
Ref	Expression
cdlemfnid.b	⊢ 𝐵 = (Base‘𝐾)
cdlemfnid.l	⊢ ≤ = (le‘𝐾)
cdlemfnid.a	⊢ 𝐴 = (Atoms‘𝐾)
cdlemfnid.h	⊢ 𝐻 = (LHyp‘𝐾)
cdlemfnid.t	⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
cdlemfnid.r	⊢ 𝑅 = ((trL‘𝐾)‘𝑊)

**Assertion**
Ref	Expression
cdlemfnid	⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → ∃𝑓 ∈ 𝑇 ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵)))

Distinct variable groups: 𝐴,𝑓 𝑓,𝐻 𝑓,𝐾 ≤ ,𝑓 𝑇,𝑓 𝑈,𝑓 𝑓,𝑊 Allowed substitution hints: 𝐵(𝑓) 𝑅(𝑓)

**Proof of Theorem cdlemfnid**
Step	Hyp	Ref	Expression
1		cdlemfnid.l	. . 3 ⊢ ≤ = (le‘𝐾)
2		cdlemfnid.a	. . 3 ⊢ 𝐴 = (Atoms‘𝐾)
3		cdlemfnid.h	. . 3 ⊢ 𝐻 = (LHyp‘𝐾)
4		cdlemfnid.t	. . 3 ⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊)
5		cdlemfnid.r	. . 3 ⊢ 𝑅 = ((trL‘𝐾)‘𝑊)
6	1, 2, 3, 4, 5	cdlemf 40545	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → ∃𝑓 ∈ 𝑇 (𝑅‘𝑓) = 𝑈)
7		simp3 1137	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝑅‘𝑓) = 𝑈)
8		simp1rl 1237	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → 𝑈 ∈ 𝐴)
9	7, 8	eqeltrd 2838	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝑅‘𝑓) ∈ 𝐴)
10		simp1l 1196	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
11		simp2 1136	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → 𝑓 ∈ 𝑇)
12		cdlemfnid.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝐾)
13	12, 2, 3, 4, 5	trlnidatb 40159	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑓 ∈ 𝑇) → (𝑓 ≠ ( I ↾ 𝐵) ↔ (𝑅‘𝑓) ∈ 𝐴))
14	10, 11, 13	syl2anc 584	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → (𝑓 ≠ ( I ↾ 𝐵) ↔ (𝑅‘𝑓) ∈ 𝐴))
15	9, 14	mpbird 257	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → 𝑓 ≠ ( I ↾ 𝐵))
16	7, 15	jca 511	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇 ∧ (𝑅‘𝑓) = 𝑈) → ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵)))
17	16	3expia 1120	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) ∧ 𝑓 ∈ 𝑇) → ((𝑅‘𝑓) = 𝑈 → ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵))))
18	17	reximdva 3165	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → (∃𝑓 ∈ 𝑇 (𝑅‘𝑓) = 𝑈 → ∃𝑓 ∈ 𝑇 ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵))))
19	6, 18	mpd 15	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑈 ∈ 𝐴 ∧ 𝑈 ≤ 𝑊)) → ∃𝑓 ∈ 𝑇 ((𝑅‘𝑓) = 𝑈 ∧ 𝑓 ≠ ( I ↾ 𝐵)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1086 = wceq 1536 ∈ wcel 2105 ≠ wne 2937 ∃wrex 3067 class class class wbr 5147 I cid 5581 ↾ cres 5690 ‘cfv 6562 Basecbs 17244 lecple 17304 Atomscatm 39244 HLchlt 39331 LHypclh 39966 LTrncltrn 40083 trLctrl 40140

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1791 ax-4 1805 ax-5 1907 ax-6 1964 ax-7 2004 ax-8 2107 ax-9 2115 ax-10 2138 ax-11 2154 ax-12 2174 ax-ext 2705 ax-rep 5284 ax-sep 5301 ax-nul 5311 ax-pow 5370 ax-pr 5437 ax-un 7753 ax-riotaBAD 38934

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1539 df-fal 1549 df-ex 1776 df-nf 1780 df-sb 2062 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2726 df-clel 2813 df-nfc 2889 df-ne 2938 df-ral 3059 df-rex 3068 df-rmo 3377 df-reu 3378 df-rab 3433 df-v 3479 df-sbc 3791 df-csb 3908 df-dif 3965 df-un 3967 df-in 3969 df-ss 3979 df-nul 4339 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-op 4637 df-uni 4912 df-iun 4997 df-iin 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-id 5582 df-xp 5694 df-rel 5695 df-cnv 5696 df-co 5697 df-dm 5698 df-rn 5699 df-res 5700 df-ima 5701 df-iota 6515 df-fun 6564 df-fn 6565 df-f 6566 df-f1 6567 df-fo 6568 df-f1o 6569 df-fv 6570 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-1st 8012 df-2nd 8013 df-undef 8296 df-map 8866 df-proset 18351 df-poset 18370 df-plt 18387 df-lub 18403 df-glb 18404 df-join 18405 df-meet 18406 df-p0 18482 df-p1 18483 df-lat 18489 df-clat 18556 df-oposet 39157 df-ol 39159 df-oml 39160 df-covers 39247 df-ats 39248 df-atl 39279 df-cvlat 39303 df-hlat 39332 df-llines 39480 df-lplanes 39481 df-lvols 39482 df-lines 39483 df-psubsp 39485 df-pmap 39486 df-padd 39778 df-lhyp 39970 df-laut 39971 df-ldil 40086 df-ltrn 40087 df-trl 40141

This theorem is referenced by: cdlemftr3 40547 cdlemj3 40805

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