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Mirrors > Home > MPE Home > Th. List > lspsnsubn0 | Structured version Visualization version GIF version |
Description: Unequal singleton spans imply nonzero vector subtraction. (Contributed by NM, 19-Mar-2015.) |
Ref | Expression |
---|---|
lspsnsubn0.v | ⊢ 𝑉 = (Base‘𝑊) |
lspsnsubn0.o | ⊢ 0 = (0g‘𝑊) |
lspsnsubn0.m | ⊢ − = (-g‘𝑊) |
lspsnsubn0.w | ⊢ (𝜑 → 𝑊 ∈ LMod) |
lspsnsubn0.x | ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
lspsnsubn0.y | ⊢ (𝜑 → 𝑌 ∈ 𝑉) |
lspsnsubn0.e | ⊢ (𝜑 → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌})) |
Ref | Expression |
---|---|
lspsnsubn0 | ⊢ (𝜑 → (𝑋 − 𝑌) ≠ 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lspsnsubn0.e | . 2 ⊢ (𝜑 → (𝑁‘{𝑋}) ≠ (𝑁‘{𝑌})) | |
2 | lspsnsubn0.w | . . . . 5 ⊢ (𝜑 → 𝑊 ∈ LMod) | |
3 | lspsnsubn0.x | . . . . 5 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
4 | lspsnsubn0.y | . . . . 5 ⊢ (𝜑 → 𝑌 ∈ 𝑉) | |
5 | lspsnsubn0.v | . . . . . 6 ⊢ 𝑉 = (Base‘𝑊) | |
6 | lspsnsubn0.o | . . . . . 6 ⊢ 0 = (0g‘𝑊) | |
7 | lspsnsubn0.m | . . . . . 6 ⊢ − = (-g‘𝑊) | |
8 | 5, 6, 7 | lmodsubeq0 19692 | . . . . 5 ⊢ ((𝑊 ∈ LMod ∧ 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → ((𝑋 − 𝑌) = 0 ↔ 𝑋 = 𝑌)) |
9 | 2, 3, 4, 8 | syl3anc 1367 | . . . 4 ⊢ (𝜑 → ((𝑋 − 𝑌) = 0 ↔ 𝑋 = 𝑌)) |
10 | sneq 4576 | . . . . 5 ⊢ (𝑋 = 𝑌 → {𝑋} = {𝑌}) | |
11 | 10 | fveq2d 6673 | . . . 4 ⊢ (𝑋 = 𝑌 → (𝑁‘{𝑋}) = (𝑁‘{𝑌})) |
12 | 9, 11 | syl6bi 255 | . . 3 ⊢ (𝜑 → ((𝑋 − 𝑌) = 0 → (𝑁‘{𝑋}) = (𝑁‘{𝑌}))) |
13 | 12 | necon3d 3037 | . 2 ⊢ (𝜑 → ((𝑁‘{𝑋}) ≠ (𝑁‘{𝑌}) → (𝑋 − 𝑌) ≠ 0 )) |
14 | 1, 13 | mpd 15 | 1 ⊢ (𝜑 → (𝑋 − 𝑌) ≠ 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 = wceq 1533 ∈ wcel 2110 ≠ wne 3016 {csn 4566 ‘cfv 6354 (class class class)co 7155 Basecbs 16482 0gc0g 16712 -gcsg 18104 LModclmod 19633 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-id 5459 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-fv 6362 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-1st 7688 df-2nd 7689 df-0g 16714 df-mgm 17851 df-sgrp 17900 df-mnd 17911 df-grp 18105 df-minusg 18106 df-sbg 18107 df-lmod 19635 |
This theorem is referenced by: mapdpglem4N 38811 |
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