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Theorem lsp0 20369

Description: Span of the empty set. (Contributed by Mario Carneiro, 5-Sep-2014.)

**Hypotheses**
Ref	Expression
lspsn0.z	⊢ 0 = (0_g‘𝑊)
lspsn0.n	⊢ 𝑁 = (LSpan‘𝑊)

**Assertion**
Ref	Expression
lsp0	⊢ (𝑊 ∈ LMod → (𝑁‘∅) = { 0 })

**Proof of Theorem lsp0**
Step	Hyp	Ref	Expression
1		lspsn0.z	. . . 4 ⊢ 0 = (0_g‘𝑊)
2		eqid 2736	. . . 4 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊)
3	1, 2	lsssn0 20307	. . 3 ⊢ (𝑊 ∈ LMod → { 0 } ∈ (LSubSp‘𝑊))
4		0ss 4342	. . . 4 ⊢ ∅ ⊆ { 0 }
5		lspsn0.n	. . . . 5 ⊢ 𝑁 = (LSpan‘𝑊)
6	2, 5	lspssp 20348	. . . 4 ⊢ ((𝑊 ∈ LMod ∧ { 0 } ∈ (LSubSp‘𝑊) ∧ ∅ ⊆ { 0 }) → (𝑁‘∅) ⊆ { 0 })
7	4, 6	mp3an3 1449	. . 3 ⊢ ((𝑊 ∈ LMod ∧ { 0 } ∈ (LSubSp‘𝑊)) → (𝑁‘∅) ⊆ { 0 })
8	3, 7	mpdan 684	. 2 ⊢ (𝑊 ∈ LMod → (𝑁‘∅) ⊆ { 0 })
9		0ss 4342	. . . 4 ⊢ ∅ ⊆ (Base‘𝑊)
10		eqid 2736	. . . . 5 ⊢ (Base‘𝑊) = (Base‘𝑊)
11	10, 2, 5	lspcl 20336	. . . 4 ⊢ ((𝑊 ∈ LMod ∧ ∅ ⊆ (Base‘𝑊)) → (𝑁‘∅) ∈ (LSubSp‘𝑊))
12	9, 11	mpan2 688	. . 3 ⊢ (𝑊 ∈ LMod → (𝑁‘∅) ∈ (LSubSp‘𝑊))
13	1, 2	lss0ss 20308	. . 3 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘∅) ∈ (LSubSp‘𝑊)) → { 0 } ⊆ (𝑁‘∅))
14	12, 13	mpdan 684	. 2 ⊢ (𝑊 ∈ LMod → { 0 } ⊆ (𝑁‘∅))
15	8, 14	eqssd 3948	1 ⊢ (𝑊 ∈ LMod → (𝑁‘∅) = { 0 })

Colors of variables: wff setvar class

Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2105 ⊆ wss 3897 ∅c0 4268 {csn 4572 ‘cfv 6473 Basecbs 17001 0_gc0g 17239 LModclmod 20221 LSubSpclss 20291 LSpanclspn 20331

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-rep 5226 ax-sep 5240 ax-nul 5247 ax-pow 5305 ax-pr 5369 ax-un 7642 ax-cnex 11020 ax-resscn 11021 ax-1cn 11022 ax-icn 11023 ax-addcl 11024 ax-addrcl 11025 ax-mulcl 11026 ax-mulrcl 11027 ax-mulcom 11028 ax-addass 11029 ax-mulass 11030 ax-distr 11031 ax-i2m1 11032 ax-1ne0 11033 ax-1rid 11034 ax-rnegex 11035 ax-rrecex 11036 ax-cnre 11037 ax-pre-lttri 11038 ax-pre-lttrn 11039 ax-pre-ltadd 11040 ax-pre-mulgt0 11041

This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3349 df-reu 3350 df-rab 3404 df-v 3443 df-sbc 3727 df-csb 3843 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3916 df-nul 4269 df-if 4473 df-pw 4548 df-sn 4573 df-pr 4575 df-op 4579 df-uni 4852 df-int 4894 df-iun 4940 df-br 5090 df-opab 5152 df-mpt 5173 df-tr 5207 df-id 5512 df-eprel 5518 df-po 5526 df-so 5527 df-fr 5569 df-we 5571 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-pred 6232 df-ord 6299 df-on 6300 df-lim 6301 df-suc 6302 df-iota 6425 df-fun 6475 df-fn 6476 df-f 6477 df-f1 6478 df-fo 6479 df-f1o 6480 df-fv 6481 df-riota 7286 df-ov 7332 df-oprab 7333 df-mpo 7334 df-om 7773 df-1st 7891 df-2nd 7892 df-frecs 8159 df-wrecs 8190 df-recs 8264 df-rdg 8303 df-er 8561 df-en 8797 df-dom 8798 df-sdom 8799 df-pnf 11104 df-mnf 11105 df-xr 11106 df-ltxr 11107 df-le 11108 df-sub 11300 df-neg 11301 df-nn 12067 df-2 12129 df-sets 16954 df-slot 16972 df-ndx 16984 df-base 17002 df-plusg 17064 df-0g 17241 df-mgm 18415 df-sgrp 18464 df-mnd 18475 df-grp 18668 df-minusg 18669 df-sbg 18670 df-mgp 19808 df-ur 19825 df-ring 19872 df-lmod 20223 df-lss 20292 df-lsp 20332

This theorem is referenced by: lspuni0 20370 lss0v 20376 lspsnat 20505 lsppratlem3 20509 ocvz 20981 lindssn 31811 lvecdim0i 31928 lbslsat 31938

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