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| Mirrors > Home > MPE Home > Th. List > idmot | Structured version Visualization version GIF version | ||
| Description: The identity is a motion. (Contributed by Thierry Arnoux, 15-Dec-2019.) |
| Ref | Expression |
|---|---|
| ismot.p | ⊢ 𝑃 = (Base‘𝐺) |
| ismot.m | ⊢ − = (dist‘𝐺) |
| motgrp.1 | ⊢ (𝜑 → 𝐺 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| idmot | ⊢ (𝜑 → ( I ↾ 𝑃) ∈ (𝐺Ismt𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | motgrp.1 | . 2 ⊢ (𝜑 → 𝐺 ∈ 𝑉) | |
| 2 | f1oi 6838 | . . 3 ⊢ ( I ↾ 𝑃):𝑃–1-1-onto→𝑃 | |
| 3 | 2 | a1i 11 | . 2 ⊢ (𝜑 → ( I ↾ 𝑃):𝑃–1-1-onto→𝑃) |
| 4 | fvresi 7147 | . . . . 5 ⊢ (𝑎 ∈ 𝑃 → (( I ↾ 𝑃)‘𝑎) = 𝑎) | |
| 5 | 4 | ad2antrl 728 | . . . 4 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑃 ∧ 𝑏 ∈ 𝑃)) → (( I ↾ 𝑃)‘𝑎) = 𝑎) |
| 6 | fvresi 7147 | . . . . 5 ⊢ (𝑏 ∈ 𝑃 → (( I ↾ 𝑃)‘𝑏) = 𝑏) | |
| 7 | 6 | ad2antll 729 | . . . 4 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑃 ∧ 𝑏 ∈ 𝑃)) → (( I ↾ 𝑃)‘𝑏) = 𝑏) |
| 8 | 5, 7 | oveq12d 7405 | . . 3 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑃 ∧ 𝑏 ∈ 𝑃)) → ((( I ↾ 𝑃)‘𝑎) − (( I ↾ 𝑃)‘𝑏)) = (𝑎 − 𝑏)) |
| 9 | 8 | ralrimivva 3180 | . 2 ⊢ (𝜑 → ∀𝑎 ∈ 𝑃 ∀𝑏 ∈ 𝑃 ((( I ↾ 𝑃)‘𝑎) − (( I ↾ 𝑃)‘𝑏)) = (𝑎 − 𝑏)) |
| 10 | ismot.p | . . . 4 ⊢ 𝑃 = (Base‘𝐺) | |
| 11 | ismot.m | . . . 4 ⊢ − = (dist‘𝐺) | |
| 12 | 10, 11 | ismot 28462 | . . 3 ⊢ (𝐺 ∈ 𝑉 → (( I ↾ 𝑃) ∈ (𝐺Ismt𝐺) ↔ (( I ↾ 𝑃):𝑃–1-1-onto→𝑃 ∧ ∀𝑎 ∈ 𝑃 ∀𝑏 ∈ 𝑃 ((( I ↾ 𝑃)‘𝑎) − (( I ↾ 𝑃)‘𝑏)) = (𝑎 − 𝑏)))) |
| 13 | 12 | biimpar 477 | . 2 ⊢ ((𝐺 ∈ 𝑉 ∧ (( I ↾ 𝑃):𝑃–1-1-onto→𝑃 ∧ ∀𝑎 ∈ 𝑃 ∀𝑏 ∈ 𝑃 ((( I ↾ 𝑃)‘𝑎) − (( I ↾ 𝑃)‘𝑏)) = (𝑎 − 𝑏))) → ( I ↾ 𝑃) ∈ (𝐺Ismt𝐺)) |
| 14 | 1, 3, 9, 13 | syl12anc 836 | 1 ⊢ (𝜑 → ( I ↾ 𝑃) ∈ (𝐺Ismt𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∀wral 3044 I cid 5532 ↾ cres 5640 –1-1-onto→wf1o 6510 ‘cfv 6511 (class class class)co 7387 Basecbs 17179 distcds 17229 Ismtcismt 28459 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5234 ax-sep 5251 ax-nul 5261 ax-pow 5320 ax-pr 5387 ax-un 7711 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-reu 3355 df-rab 3406 df-v 3449 df-sbc 3754 df-csb 3863 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-nul 4297 df-if 4489 df-pw 4565 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4872 df-iun 4957 df-br 5108 df-opab 5170 df-mpt 5189 df-id 5533 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-iota 6464 df-fun 6513 df-fn 6514 df-f 6515 df-f1 6516 df-fo 6517 df-f1o 6518 df-fv 6519 df-ov 7390 df-oprab 7391 df-mpo 7392 df-map 8801 df-ismt 28460 |
| This theorem is referenced by: motgrp 28470 |
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