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Mirrors > Home > MPE Home > Th. List > eqeefv | Structured version Visualization version GIF version |
Description: Two points are equal iff they agree in all dimensions. (Contributed by Scott Fenton, 10-Jun-2013.) |
Ref | Expression |
---|---|
eqeefv | ⊢ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) → (𝐴 = 𝐵 ↔ ∀𝑖 ∈ (1...𝑁)(𝐴‘𝑖) = (𝐵‘𝑖))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleei 28927 | . . 3 ⊢ (𝐴 ∈ (𝔼‘𝑁) → 𝐴:(1...𝑁)⟶ℝ) | |
2 | 1 | ffnd 6738 | . 2 ⊢ (𝐴 ∈ (𝔼‘𝑁) → 𝐴 Fn (1...𝑁)) |
3 | eleei 28927 | . . 3 ⊢ (𝐵 ∈ (𝔼‘𝑁) → 𝐵:(1...𝑁)⟶ℝ) | |
4 | 3 | ffnd 6738 | . 2 ⊢ (𝐵 ∈ (𝔼‘𝑁) → 𝐵 Fn (1...𝑁)) |
5 | eqfnfv 7051 | . 2 ⊢ ((𝐴 Fn (1...𝑁) ∧ 𝐵 Fn (1...𝑁)) → (𝐴 = 𝐵 ↔ ∀𝑖 ∈ (1...𝑁)(𝐴‘𝑖) = (𝐵‘𝑖))) | |
6 | 2, 4, 5 | syl2an 596 | 1 ⊢ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) → (𝐴 = 𝐵 ↔ ∀𝑖 ∈ (1...𝑁)(𝐴‘𝑖) = (𝐵‘𝑖))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1537 ∈ wcel 2106 ∀wral 3059 Fn wfn 6558 ‘cfv 6563 (class class class)co 7431 ℝcr 11152 1c1 11154 ...cfz 13544 𝔼cee 28918 |
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 1908 ax-6 1965 ax-7 2005 ax-8 2108 ax-9 2116 ax-10 2139 ax-11 2155 ax-12 2175 ax-ext 2706 ax-sep 5302 ax-nul 5312 ax-pow 5371 ax-pr 5438 ax-un 7754 ax-cnex 11209 ax-resscn 11210 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1540 df-fal 1550 df-ex 1777 df-nf 1781 df-sb 2063 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2727 df-clel 2814 df-nfc 2890 df-ne 2939 df-ral 3060 df-rex 3069 df-rab 3434 df-v 3480 df-sbc 3792 df-csb 3909 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-nul 4340 df-if 4532 df-pw 4607 df-sn 4632 df-pr 4634 df-op 4638 df-uni 4913 df-br 5149 df-opab 5211 df-mpt 5232 df-id 5583 df-xp 5695 df-rel 5696 df-cnv 5697 df-co 5698 df-dm 5699 df-rn 5700 df-res 5701 df-ima 5702 df-iota 6516 df-fun 6565 df-fn 6566 df-f 6567 df-fv 6571 df-ov 7434 df-oprab 7435 df-mpo 7436 df-map 8867 df-ee 28921 |
This theorem is referenced by: eqeelen 28934 brbtwn2 28935 colinearalg 28940 axcgrid 28946 ax5seglem4 28962 ax5seglem5 28963 axbtwnid 28969 axeuclid 28993 axcontlem2 28995 axcontlem4 28997 axcontlem7 29000 |
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